Answer:
20
Step-by-step explanation:
just substitute 0 for time in your equation, you will get 20.
9.95 + 0.30s=c
replaces s with 35
9.95 +0.30(35) =c
9.95 + 10.50 = 20.45
it will cost $20.45
I did the math and I think that it's 3.7
C) 7 and 3
2x+4+8x-10=x²+15
10x-6=x²+15
0=x²-10x+21
0=(x-3)(x-7)
x=3 and 7