Answer:
Step-by-step explanation:
2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
Answer: 9h+40 (C)
Step-by-step explanation: the answer is 9h+40 because $9/hr rate is dependent on how many hours she worked (h), so it would be multiplied. She earned $40 already, so it would be added. the correct expression would be 9h + 40, or c.
Answer:
If we add the Replaced, the Left, that would be 28 LB, 14 boxes.
There are 2 car rental companies
the first one charges 3 dollars per day you drive plus a 20 dollar insurance fee
the second one charges 5 dollars per day and a 10 dollar insurance fee
y=cost
x=days