Could someone help me do the marked questions

P.1 Review of Real Numbers and Their Properties . Federal Deficit . . . . . . . . Identifying Rules of Algebra In Exercises 65-68. In Exercises 49-52, use the bar graph, which shows identify the rule(s) of algebra illustrated by the statement the receipts of the federal government (in billions of dollars) for selected years from 2008 through 65. 2014. In each exercise, "h + 6" - (h + 6) = 1, h#-6 you are given the 66. (x + 3) - (x+ 3)=0 expenditures of the 67. x(3y) = (x . 3)y = (3x)y federal government. 68. 4(7 . 12) = (4 . 7)12 = 1 . 12 = 12 Find the magnitude of the surplus or Operations with Fractions In Exercises 69-72, deficit for the year. perform the operation. (Write fractional answers in (Source: U.S. Office simplest form.) of Management and Budget) 69 2x 70. 3x 3 4 3200 3x 5 2x 3000 3021.5 71. 72. 10 6 3 2800 - 2600 - 2524.0 Exploration Receipts (in billions of dollars) 2450.0 2400 True or False? In Exercises 73-75, determine whether 2200 -+ 2162.7 the statement is true or false. Justify your answer. 2000 + 73. Every nonnegative number is positive. 2008 2010 2012 2014 74. If a > 0 and b 0. Year 75. If a 0. Year Receipts, R Expenditures, E R - E 49. 2008 $2982.5 billion 50. 2010 $3457.1 billion HOW DO YOU SEE IT? Match each 51. 2012 $3537.0 billion description with its graph. Which types of real numbers shown in Figure P.1 on page 2 52. 2014 $3506.1 billion may be included in a range of prices? a range of lengths? Explain. Identifying Terms and Coefficients In (i) Exercises 53-58, identify the terms. Then 1.87 1.88 1.89 1.90 1.91 1.92 1.93 identify the coefficients of the variable terms of the expression. (ii) 1.87 1.88 1.89 1.90 1.91 1.92 1.93 53. 7x + 4 54. 2x - 3 (a) The price of an item is within $0.03 of $1.90. 55. 6x3 - 5x 56. 4x3 + 0.5x - 5 (b) The distance between the prongs of 57. 3 3x2 + 1 58. 2 2x2 - 3 an electric plug may not differ from Evaluating an Algebraic Expression In 1.9 centimeters by more than 0.03 centimeter. Exercises 59-64, evaluate the expression for each value of x. (If not possible, state the 77. Conjecture