8.x + 2y = -12 and 5x - y = 4.

Step-by-step explanation:

Graph both equations

The solutions are the coordinates of the intetsection point between the lines.

The coordinates of the intersection point are approximatively (-0.23,-5.12)

So:

● x = -0.23

● y = -5.12

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d