Answer:
30
Step-by-step explanation:
Use PEMDAS
parentheses is first
3+7=10
There's no exponents
You have to do it in order from left to right
6÷2=3
3*10=30
The answer is no solution
It would be 13 + 10t because she starts with 13 dollar charge in the first hour but every hour after that would be 10 dollars an hour.
If you draw this triangle on a graph as described, tan theta is -4(square root)33/33