1 mph
step-by-step explanation:
if the question is asking how much does she drive per mile then,
13 / 13 = 1 mph
the answer is a) a healthy economy because it results from a steady rise in demand.
1st, 348.600
2nd, 256.905
3rd, 892.500
4th, 6937
last one stays the same since it has no decimal