1 (1 point) Solve the problem. Mark has $90 to spend on salmon at $5.00 per pound and/or chicken at $3.00 per pound. If he buys s pounds of salmon and c pounds of chicken, the equation 5s + 3c = 90 must be satisfied. How much salmon did Mark buy if he bought 15 pounds of chicken? Question 1 options: a) 5 lb b) 13 lb c) 16 lb d) 9 lb Save Question 2 (1 point) Solve the problem. A salesperson has two job offers. Company A offers a weekly salary of $420 plus commission of 14% of sales. Company B offers a weekly salary of $840 plus commission of 7% of sales. What is the amount of sales above which Company A's offer is the better of the two? Question 2 options: a) $3000 b) $6000 c) $6100 d) $12,000 Save Question 3 (1 point) To find the number of units that gives break-even for the product, solve the equation R = C. Round your answer to the nearest whole unit. A manufacturer has total revenue given by the function R = 70x and has total cost given by where x is the number of units produced and sold. Question 3 options: a) 20 units b) 892 units c) 5350 units d) 120 units Save Question 4 (1 point) Without graphing, determine whether the following data set is exactly linear, approximately linear or nonlinear. Question 4 options: a) exactly linear b) nonlinear c) approximately linear Save Question 5 (1 point) Solve the problem. The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). The linear model for this data is where x is temperature and y is growth in millimeters. Use this model to predict the growth of a plant if the temperature is 63. Question 5 options: a) 28.40 mm b) 26.57 mm c) 27.89 mm d) 28.90 mm Save Question 6 (1 point) Solve the system of equations, if a solution exists. Identify the y-value of that solution. Question 6 options: a) y = 9 b) y = -8 c) y = 8 d) No solution Save Question 7 (1 point) Solve the double inequality. 10 < < 15 Question 7 options: a) b) c) d) 12 d) Save Question 10 (1 point) Solve the formula for the specified variable. F= C + 32 for C Question 10 options: a) C= b) c) d) C= C= (F - 32) C= (F - 32) Save Question 11 (1 point) You are given a table showing input and output values for a given function y1 = f(x). Use the table to answer the question. What is the y-intercept of the graph of y = f(x)? Question 11 options: a) 1 b) -3 c) 5 d) 0 Save Question 12 (1 point) Write the best-fit linear model for the data. The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Find a linear function that predicts a student's score as a function of the number of hours he or she studied. Question 12 options: a) y = 33.7 - 2.14x b) y = 33.7 + 2.14x c) y = -67.3 + 1.07x d) y = 67.3 + 1.07x