The expression for the amount of time rented would be:
C=60(h), I choose this expression because C would stand for cost, 60 for the amount per hour, and h for the piece of expression being given. Now when you need to find the amount per hour, the brackets means to times; so you'd plug in the hour needed to be found in h, and times 60 by the hour.
Your table should look like this :
COST PER HOUR | HOURS | COST
$60 | 2 | $60 x 2 = $120
$60 | 6 | $60 x 6 = $360
$60 | 8 | $60 x 8 = $480
$60 | 10 | $60 x 10 = $600
It is B because the formula is 1st term (a) + (n-1) (T2-T1)
