Previous Problem Problem List Next Problem (1 point) Find two numbers a and b whose sum a + b is -8 and whose difference a - b is -2. Your answer is b =Assignment 6: Problem 7 Previous Problem Problem List Next Problem (1 point) An apple contains 105 calories and 4 g of fiber. A banana contains 165 calories and 3 g of fiber. Set up a system of equations that could be solved to determine the number of apples (A) and bananas (B) that should be eaten to obtain 3180 calories and 85 g of fiber. Equation 1: Equation 2:Previous Problem Problem List Next Problem {1 point} LooI-c at these number sentences. D+o+o=u D+D+D=9 Each |:| represents the same number Each :5. represents the same number what is the value of El + it C) A. E 05.6 013.5 DEL? Previous Problem Problem List Next Problem (1 point) A school fund raising event sold a total of 237 tickets and generated a total revenue of $704.70. There are two types of tickets: adult tickets and child tickets. Each adult ticket costs $4.40, and each child ticket costs $2.10. Write and solve a system of equations to answer the following questions. adult tickets and child tickets were sold.Assignment 6: Problem 9 Previous Problem Problem List Next Problem (1 point) You poured some 10% alcohol solution and some 6% alcohol solution into a mixing container, Now you have 800 grams of 7.6% alcohol solution How many grams of 10% solution and how many grams of 5% solution did you pour into the mixing container? Write and solve a system equation to answer the following questions. You mixed grams of 10% solution with grams of 6% solution