The 5th term of an arithmetic progression is three times the second term and the 3rd term is 10 find: 1) the first term
2) the common difference
3) the 15th term​

x = 3 ± √(5+y)

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168