Answer:
C is the dependent variable and r is independent
Step-by-step explanation:
Adriana can ride the bus any number of times she wants. No one is stopping her from doing that so 'r' becomes an independent quantity.
Whereas, the total cost for the bus rides depends on the number of times Adriana rides the bus and the relation is given as, C=1.25r
This is because it costs $1.25 each time she rides the bus in one direction
The general form of an equation is

. Solving for (5+X)(5-X)=7 by multiplying the factors and subtratcting 7 on both sides gives the equation

, so
A = 1
B = 0
C = -18
16 Pints
if that's what your asking
Answer:
15
Step-by-step explanation:
500-60=440
440/30=14.66666667
simplify 14.66666667= 15