Answer:
Greater fraction is

Step-by-step explanation:
we are given two fractions
and 
First fraction:

Second fraction:

We can simplify it


To compare them , firstly we should make common denominator
denominators are 7 and 5
so, common denominator is

now, we can make each denominator as 35





so, we can see that both fractions have common denominator =35
and greater numerator is 30
so,
Greater fraction is

B I assume, not 100% sure
well i have to see the equation to know
Answer:
h = 20 in
Step-by-step explanation:
V = pi * r^ * h
628 = pi x 10 x h
628/(pi x 10) = h
h = 20
Answer: Third option.
Please, see the detailed solution in the attache file.
Thanks