Write the equation in standard form for a circle with center (-9,3) and tangent to the x-axis

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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.

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15