The equation pequals3s represents the perimeter p of an equilateral triangle with side length s. what is the perimeter of an equilateral triangle with side length 6 mi?

They gave you the equation. P = 3s.

P= perimeter
s= the side lengths.

The length of the triangle is 6 mi. Plus in your 6 in the s. That equals 18 mi.

You multiply 3 because it is an equilateral triangle- all sides are equal. 3(6) is the same as 6+6+6

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post