PLS HELP ME ASAP ill give thanks, and five stars

A

Step-by-step explanation:

The additive inverse property states that if we have a number a, then:

Here, we have the equation:

And we divide both sides by 2:

To acquire:

So, we did not use the additive inverse property since we didn't add anything.

Instead, we used the division property of equality by dividing both sides by 2.

So, our answer is A.

And we're done!

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length