Respuesta :
Answer:
Option C It will cost $42 for 28 binders
Step-by-step explanation:
Mrs. Santos determined that 15 binders would cost = $22.50
Therefore, 1 binder would cost = $1.50
Now we calculate each statement :
a. 18 binders will cost $12
= 18 × $1.50 = $27.00 (not correct)
b. 30 binders will cost $20
= 30 × $1.50 = $60.00 (not correct)
c. 28 binders will cost $42
28 × $1.50 = $42.00 (Correct)
d. 48 binders will cost $48
48 × $1.50 = $72.00 (not correct)
Option C It will cost $42 for 28 binders would be correct.