
In my opinion, that is the simplest form. However, your teacher may want you to remove powers and factors of 5. In that case, the result is ...
Answer:
a= -1
Step-by-step explanation:
b= -16
There are 12 inches in every foot 5 x 12 is 60 half a foot would be 12÷2=6 so 60+ 6=66 inches