Assume Charles charges $7*3=$21 if he babysits for 2,5 hours (that is 2 and a half hours).
That is we are not considering Charles babysitting exactly 1, 2, 3 or 4 hours, but also in between times.
then we can write the following piecewise function to describe the situation:
f is a function from (0, 4] to {$7, $14, $21, $28}
Plug in each pair into each system of inequalities. And see which one fits
Answer: i got 394
Step-by-step explanation:
Answer = -20
-4-5+4+(-5)-4-5+4+(-5) =-20
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