An equilateral triangle has 12in base its perimeter measures

Equilateral triangle means that all lengths of a triangle are the same, so if we are given one side of the triangle, 12in(the base), the rest of the sides are also 12in as well.

Since there are 3 sides to a triangle and one side measures 12 inches:

3 x 12 = 36 inches

perimeter =distance round a figure

sic

since an equilateral has all of its side equal

perimeter is 12×3

the answer is 36

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29

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