Question

Heidi, a jewelry salesperson, earns a commission of $55 every time she sells a diamond ring. How many rings does she have to sell to earn $605? Choose the equation that correctly calculates the amount.

a. $605 – $55 = w
b. $55 w = $605
c. $55 × w = $605
d. $55 – w = $605 – w

Answer 1

sorry for the really late answer. but its (C)

Answer 2

b and c are correct
If we use w for the number of rings she sells we might ask:
$55 times how many rings she sells (w) gets her $605 in commissions.
$55 x w = $605
or you may skip the times sign (x) because when number appears next to a variable (such as w) they are connected by multiplication
so
$55w = $605 is the same thing as $55 x w = $605.