Answer:
25%
Step-by-step explanation:
The percent of increase can be calculated using following formula:

In your case,
- Initial amount = 12 students;
- Final amount = 15 students,
then

bearing in mind that the average rate of change = slope, and for that we can simply use two points off the table.

Answer:
Step-by-step explanation:
I'll give a couple answers so you get the gist of things.
All you have to do is substitute 1/2 for x and 3/4 for y.
Ex - 30. x × y = 1/2 × 3/4 = 3/8
Answer:
![(\sqrt[3]{7} )^4](https://tex.z-dn.net/?f=%28%5Csqrt%5B3%5D%7B7%7D%20%29%5E4)
Step-by-step explanation:
here's a tip!
to remember which part of the fractional exponent goes on the radical or which one is the exponent think of the simple
which equals 
this way you can remember that which ever number is in the denominator of the fractional exponent goes onto the radical.