Hey there! :)
Answer:
133 pieces.
Step-by-step explanation:
If 7 pieces of cardstock sell for $3, we can set up a proportion to determine the amount of pieces bought in pieces/ money spent:
[tex]\frac{7}{3} = \frac{x}{57}[/tex]
Cross multiply:
7 · 57 = 3 · x
399 = 3x
Divide both sides by 3:
x = 133 pieces. This is the amount of pieces bought.
