Answer:
Addition.
Step-by-step explanation:
Addition was used to add 5 to both sides, leaving x by itself.
The answer is A they both get payed 6 dollars per hour
if i guess and do it the answer ten times is this 157.128314
12^2=144
144 is divided by b which also is an odd interger, there only 2 numbers : 1 and 3
if b=3, a^2=48, then there will be no a available
if b=1 , a^2=144, then a is 12 and 12 can not be divided by 9
The answer is D
