A teacher buys 15 boxes of pencils, 3 boxes of erasers, and 7 boxes of dry erase markers for the class. Each box of pencils costs $19.85, each box of erasers costs $5.62, and each box of dry erase markers costs $31.22.What is the best estimate, in dollars, of the classroom items?

533.15

Step-by-step explanation:

$15*19.85+3*5.62+7*31.22

=533.15

Make me brainliest

$533.15

Step-by-step explanation: multiply the cost to how many they want.

sites:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.