Answer: #7 is A and #8 is D
Step-by-step explanation:
You need to do the ones in the parentheses first
Answer:
y=1
You can put equations in a graphing calculator if you aren't sure.
Answer:
There's 3 questions which one do I answer?
Step-by-step explanation:
To find this out, use a percent proportion, use cross products, and solve the equation.

So, the percent tip is 14%.