Answer:

Step-by-step explanation:
We want to simplify

Recall that,

So weneed to write one base and add the exponents,

We collect LCM in the exponent to get,

We simplify to obtain,

The correct answer is A.
90%= 1170
so
1%=1170/90
then
100%=13x100
100%=1300
Answer:
.
Step-by-step explanation:
Wind energy is not a predictable/reliable source. If the wind slows down or is'nt present, you don't have any electricity being produced, while coal can be burned 24/7
Answer:
option D : 69/10
Step-by-step explanation:
Emma has
bags of dog food to feed all of the dogs at the animal shelter.

The dogs each eat 81⁄4 bags of food per week.

Number of weeks worth food Emma have =
Number of bags Emma has / number of bags dogs eat
Number of weeks worth food Emma have =
= 
Number of weeks worth food Emma have = 69/10