9) What is the radius of a circle with a
circumference of 25 cm?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b