Write a formula for the perimeter of an equilateral triangle. evaluate the formula for the side length of 3.5 cm.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

9/10 divide by -3/15 as a mixed number