Answer:

Step-by-step explanation:
"one over threep + 15":

Say the percentage increase is 25%. If you have the whole number of 30 then you would multiply 30 by .25. You should therefore get 7.5 once both are multiplied. That means you should add 7.5 to 30, and your final answer will be 37.5.
Answer:
Option 1 and Option 4
Step-by-step explanation:
The rest are just wrong.
Answer:
A. 67
Step-by-step explanation:
3+2(2)^3
The first thing you would do is distribute the 2 and you would get
3+(4)^3
The next thing you would do is the exponent
3+(4*4*4) = 3+64
Then you would just add 3
64+3= 67
So the answer is A. 67.