**Answer:**

a

**Step-by-step explanation:**

5q +5q= 10q

We will use a method of substitution.

y = 5/2 x + 2

2 y = 5 x + 4 ⇒ 2 ( 5/2 x + 2 )= 5 x + 4

5 x + 4 = 5 x + 4

0 x = 0 ⇒ x, y ∈ R

Answer: D)

**This system has infinitely many solutions.**

The best answer to go with is c

X(^-1)^7=x^6

7(c^1)^2/3=7(c)^2/3

(m^2n^3)^-3=1/m^6n^9

**Answer:**

The answer is B

**Step-by-step explanation:**

To find the area of the origonal triangle, solve for half of the area of the trapazoid. To solve for the trapazoid, find the area of the rectangle.