Answer:
-4p=13
Step-by-step explanation:
-3p-7p=13
-4p=13
p=-13/4
The cost of meal = 
The tip to the waiter =
%
Discount =
%
Cost = 
Cost = 
Cost = $
0
Answer:
6.82 cm
Step-by-step explanation:
1000=V=pi*r^2*h. 1000=pi*r^3, r=6.82 cm
Answer:
$20?
Step-by-step explanation:
D. Because if one time is a certain amount of time away from 12pm and the other one is a certain amout away from 12pm then you add them up and get a number of hours and minutes