Answer:
72
Step-by-step explanation:
A=a+b/2*hA=12
A=12*12/2
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72
Answer: 360 cubic cm
Step-by-step explanation: you just multiply all the numbers.
X=1
3+4=7
3x1=3
3+4 =6 so X =1
What you have to do is multiply 21 by 2. it is 42. $42 dollars was the original price of the bookcase.
Answer:
29 times
Step-by-step explanation:
We can find this answer by dividing 87 by 3
87/3 = 29
We can prove this by multiplying 29 times 3 which gives us 87
