Answer: 
<u>Switch operations</u>
Before: 
After: 
Before you switch operation you remove the subtraction sign where -(16) is.
Answer:
C
Step-by-step explanation:
The HL Theorem states; If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent
Answer:
-3
4
Step-by-step explanation:
You need to take something called the dot product
(X-7)(x-7)
Hope this is what you're looking for!