Answer:
a/1/$400
Step-by-step explanation:
240 divided by 12=20
20x10x2=$400
Answer:
the length of all sides added together
Grace weighed 167 pounds before she started her exercise program.
Step-by-step explanation:
Given,
Weight lost by Grace = 45 pounds
Weight of Grace after exercise weeks = 122 pounds
Let,
x represents the weight of Grace before she started the exercise program.
Loss means subtraction, therefore,
We will subtract the lost weight from original weight.
Original weight - Weight lost = Weight after exercise weeks

Adding 45 on both sides

Grace weighed 167 pounds before she started her exercise program.
Keywords: equation, addition
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1) -2 -6
2) -2 -y
3) -2 -6 + -y
4) -2 -6 -y