Answer:
you will only move 15 units up
Step-by-step explanation:
since the y is the only one that has a value, then you will have to focus more on the direction where the y will go. and since the y's value is positive then you will have to go upwards.
<h3>
Answer: Choice C</h3>
The base 16 is the same as 4*4.
From there, the rule 
is used to get 
Afterward, the exponents are added getting 1/2+1/2 = 2/2 = 1. The rule is 
which only works if the bases are both the same.
7 goes in to 30 four times i believe :)
