Answer:
67
Step-by-step explanation:
Step-by-step explanation:
7x-1=8x-14
-1+14=8x-7x
13=x
Answer:
68 inches
Step-by-step explanation:
The chains are 5ft and 8 inches long.
Your answer must be in inches, so convert any non-inch units to inches.
5 ft *
= 60 inches
60 inches + 8 inches = 68 inches
Our first expression is
. Upon distributing the exponent 4 on all the terms, we get:

Therefore, your answer is correct for this part. :)
Second expression is
. Upon distributing the exponent -2 on all the terms, we get:

Your second answer is correct too.
Our third expression is
. Upon distributing the exponent 2 on all the terms, we get:

This one is not correct. Your answer would have been correct, if the exponent were -2 instead of 2 in this part.
Our forth and last expression is
. Upon distributing the exponent -5 on all the terms inside the parenthesis, we get:

Therefore, your answer for this part is also correct.
Looking at your work, I don't think you made a mistake in number 3 also, probably mis-typed the question while writing here :)