At the aquarium, each tank contains five fish. freddy wants to calculate the total number of fish at the aquarium. what variable is needed to calculate the total?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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: 3x+y=6 4x-2y=18 show all work !