Express each ratio as a unit rate. round to the nearest tenth, if necessary. 400 feet in 52.4 seconds a. 76 feet per second c. 7.7 feet per second b. 0.76 foot per second d. 7.6 feet per second

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)