Answer:
Step-by-step explanation:
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Answer:
19 ft
Step-by-step explanation:
The perimeter of a rectangle is given by ...
P = 2(L +W)
Filling in the given values, we have ...
78 = 2(20 +W)
39 = 20 +W . . . . . divide by 2
19 = W . . . . . . . . subtract 20
The width of the rectangular pen is 19 feet.
Answer:

Step-by-step explanation:
Given

Required
The result in standard form
We have:

Remove brackets

Collect like terms


The standard form of a quadratic equation is:

So, we have:


Answer: he worked 31 hours and he earned $317.75
hope this helps :) and if it doesn’t I’m rlly sorry