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11.) Mrs. Collins is buying supplies for her classroom. Pencils cost
$0.05 each and folders cost $0.45 each.
a) Write an expression to represent the situation if she buys p pencils
and f folders,
b) Solve your expression for the total cost if she buys 100 pencils and
20 folders.

Sagot :

Answer:

the total cost will be $14

Step-by-step explanation:

a) 0.05p + 0.45f

b) 0.05(100) + 0.45(20)=

5+9

14