The bases of the prism are the triangular faces.
One side is marked 3 units. The vertical sides to the left of the triangles are 4 units. In a right triangle, if the legs measure 3 and 4, the hypotenuse measures 5.
The three sides of the triangular base measure 3, 4, and 5.
Perimeter = sum of the lengths of the sides
Perimeter = 3 + 4 + 5 = 12
Answer: 12 units
Providing 1 mile is 5280 feet, then,

It will travel,

in 15 seconds.
18 * 3 = 54
4 * 40 = 160
160 + 54 = 214 (From here I will say that she doesn’t have enough money
Answer:
y = x+3
Step-by-step explanation:
3y-3x = 9
3y-3x+3x = 9+3x
3y = 3x+9
3y/3 = 3x/3+9/3
y = x+3