Arecycling center pays 10 cents for each glass bottle and 5 cents for each aluminum can that is returned to the center. if shaundra returns b bottles and c cans to the center, which of the following represents the amount, in cents, that the center pays her?

For this case, the first thing we must do is define variables.
 We have then:
 C: number of cans
 B: number of bottles
 We now write the expression that represents the total amount she receives:
 0.10B + 0.05C
 
 The expression that represents the amount, in cents, that the center pays her is:
 0.10B + 0.05C