The altitude of an equilateral triangle is 9 inches. find the perimeter of the triangle in inches.

Anyone know? will mark brainliest if correct

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.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys