Please write out the full question so we can do our best to assist you in finding the most logical answer.
Hope this helps!
So if in 1/4 of an hour 75 gallons are pumped you would multiply 75 by four which will give you 300. This means 300 gallons are pumped in an hour
If the measure of the vertex angle is 30 degrees, then the measures of the base angles are 75 degrees.
The gcf of 15 and 70 is 5