Since the 50 remains the same every time, is has no letters next to it in the equation. The 20, however, is multiplied by the amount of hours, and will therefore have an h next to.
20h + 50- the answer is a.
2-5 inches =125miles
4-75inches=237.50 miles.
7.6=380miles
Answer:
<em>A, D // other options are wrong.</em>
The relationship between the 7's is not different in any way because the sevens are all in the same place. The sevens are in the hundreds and thousands place.