Answer: In the figure AB is about 8.4 inches and AC is about 13.05 inches.
Step-by-step explanation: We can use cosine to find the hypotenuse. 
Using a calculator x is about 13.05
Using tangent we can find the length opposite of <C

Using a calculator x would be about 8.4
Answer:3/5
Step-by-step explanation: and if you have trouble understanding slope again just do rise over run. Good luck :)
X^2+20x+10 that's the answer
20% * 158.08 =31.616
or
20% * £158.08 =48.1005824