C because PEMDAS
(Please excuse my dear aunt sally)
Answer:
x = -5
Step-by-step explanation:
Get x by itself on the left side. To do that, subtract the 7. Do to both sides. This makes x = -5
Answer:
Hi
Step-by-step explanation:
the answer is :

with phithaghoreth law you can find the base of the two triangles
and then you sum
if you need more explanation tell me