Answer:
3p = 7.50 its something like that but hoped this helped
Step-by-step explanation
7.50 divided by 3
2.50
p= 2.50
The answer is 38.8 repeating. Might as well just round it

Both equations are equivalent, so there are infinitely many solutions.
13.
65% = 65/100, and 65/100 * 20 = 13