Ja’Miles designs a sign for a store in the shape of a triangle. His design is 7.5 square feet in area, and the triangle has a height of 2.5 feet. What is the length of the base of his sign?

To find the length of the base of the triangle, we can use the formula for the area of a triangle:

Area = 0.5 * base * height

Given that the area is 7.5 square feet and the height is 2.5 feet, we can plug these values into the formula and solve for the base:

7.5 = 0.5 * base * 2.5
7.5 = 1.25 * base
base = 7.5 / 1.25
base = 6

Therefore, the length of the base of Ja’Miles' sign is 6 feet.