8. write an equation of the form an = a1 + d(n - 1) that would
describes the nth term of the arithmetic sequence 7, 10, 13,

a(n) = 7 + 3(n - 1)

Step-by-step explanation:

Notice that every term of the sequence 7, 10, 13, 16 is 3 more than the previous term.  That tells us this is an arithmetic sequence with first term 7 and common difference (d) 3.

Adapting the given equation, we end  up with

a(n) = 7 + 3(n - 1)

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk