Answer:
r=5
Step-by-step explanation:
r+2=7
r=5
8172/9=908 the answer is 908
The length of the dollhouse is 156 square inches
Answer: Step E
Step-by-step explanation:
The error is in the last step. In Step D, we see that we're supposed to subtract the second part from the first part. We also see we have the terms 2x-8 in the numerator on the right. Since we're subtracting, the expression should actually be -2x +8. 3 -2x +8 should be -2x +11 which is not the numerator in Step E so the last step is wrong.
Subtract 9x from 23x yields 14x. This was done by subtracting algebraically the variables.
