Solve the problem.Sprint charges a flat monthly fee of $16.89 to use their services. You also must pay $0.10 per minute of talking on the telephone. Let f(t) represent the monthly phone bill (in dollars) from talking on the phone for t minutes.i) Find an equation for f.ii) What is the slope of f? What does it mean in terms of the situation?
What will be an ideal response?
| i) | f(t) = 0.10t + 16.89 |
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Solve the problem.A tank contains 100 gal of fresh water. A solution containing 2 lb/gal of soluble lawn fertilizer runs into the tank at the rate of 1 gal/min, and the mixture is pumped out of the tank at the rate of 
Find the maximum amount of fertilizer in the tank and the time required to reach the maximum.
A. 48 pounds, 40 minutes B. 60 pounds, 40 minutes C. 50 pounds, 50 minutes D. 48 pounds, 60 minutes
Graph.
- 
= 1
A. 
B. 
C. 
D. 
Solve the problem.A rectangular enclosure must have an area of at least 200 yd2. If 60 yd of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 15 ? w ? 20 B. 10 ? w ? 15 C. 0 ? w ? 10 D. 10 ? w ? 20
Perform the indicated operation or operations, if possible.
+ 
A. 
B.
[-2 -4 5]
C. 
D. 