**Answer:**

look above

**Step-by-step explanation:**

hope it hepls

Equilateral triangle<span> is a </span>triangle<span> in which all three sides are equal

</span>also 3 angles are equal and each angle = 60 degrees

so

2x - 4 = 60

2x = 64

x = 32

hope it helps

**Answer:**

4 boys

**Step-by-step explanation:**

3 × y = 1 × 12

3y = 12

3y ÷ 3 = 12 ÷ 3

y = 4

**Answer:**

BDE

**Step-by-step explanation:**

**Answer:**

f^-1 (x)=(x/2)^(1/3)

**Step-by-step explanation:**

y=2x^3

x=2y^3

2y^3=x

y^3=x/2

y=(x/2)^(1/3)