The area of a circle is given by a(r)=pie^2 and the radius in terms of the circumference is given by r(c)=c/2pie. find a(r(c))

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.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Can someone me with the property questions for 12 13 and 14 plz