13x = 5x + 64

A) 5 4/13

B) 8

C) 9

D) 9/32

Calculate the mass of a 5.50 cm3 cylinder of a substance that has a density of 4.20 g/cm3.

An airplane takes off 12.5 miles south of a city and flies due north at a constant speed of 170 miles per hour.

Mrs. B has $25 in her savings and wants to put $10 every week into the account. Write an equation showing how much money she will have at any number of weeks. Solve your equation to show the total amount of money Mrs. B will have in 7 weeks.

What are the factors of the polynomial below? x2 + 7x - 18 A. (7x + 11) (x - 1) B. (x + 2) (9x - 2) C. (x + 9) (x - 2) D. (7x + 9) (x - 2)

An amount of $28,000 is borrowed for 11 years at 3.75% interest, compounded annually. if the loan is paid in full at the end of that period, how much must be paid back? use the calculator provided and round your answer to the nearest dollar.

Kit bought a soft drink and a sandwich for $9.00. What was the price of each if the sandwich cost 3.5 times as much as the soft drink?

What is the solution to the system of equations? y = - 5x + 3 y = 1 (0.4, 1) (0.8, 1) (1, 0.4) (1, 0.8)

Find the solutions to the equation 10^2x+11 = (x+6) ^2-2. Which values are approximate solutions to the equation check all that apply. A. - 9.6 B.-7.4 C. - 4.6 D. - 2.4 E. 0.6

how many pairs of opposite sides are parallel in a trapezoid? how is this different from a parallelogram?

The total bill for drinks and pizza and drink is 14.90 before tax/the sales tax is 5 •/• what will be the amount of sales tax added to the bill.