Which answer describes the calculations that could be used to solve this problem?
marcela paid a total of $60.63 for 3 sweaters and a skirt. each sweater cost the same amount. the skirt cost $18.78. how much did one sweater cost?
a.
add $60.63 to $18.78. then divide by 3.
b.
subtract $18.78 from $60.63. then divide by 3.
c.
multiply $60.63 by 3. then add $18.78.
d.
divide $60.63 by 3. then subtract $18.78.