Jen buys b boxes of cereal for $2.50 each and c cartons of milk for $3.25 each.
1 answer:
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Answer:
f(x) = 5x - 30
Yes it is a function
Step-by-step explanation:
Because when you input 0 you get -30 we know it starts at 0 or (0,-30). This gives us b in the equation y = mx + b.
We know that for every 4 cars washed it increases by 20. So 20/4 is 5. This tells us m = 5.
Plug it all in and you get y = 5x - 30 or f(x) = 5x - 30
Answer:
1 year , 9 months or 21 months
Step-by-step explanation:
that is the solution above
