Question

Bethany sells roses and petunias. The expression 3r +2.5p gives the cost (in dollars) of r roses and p petunias What is the cost of 7 roses and 8 petunlas?

Answer 1

3r + 2.5p........this is saying that each rose costs $ 3 and each petunia costs $ 2.50

so if there is 7 roses and 8 petunias.....sub in 7 for r and 8 for p
3(7) + 2.5(8) = 21 + 20 = $ 41 <===

Answer 2

the cost of 7 roses and 8 petunlas is $41

Explanation:

Bethany sells roses and petunias. the cost expression is given by

`3r+2.5p`

where r represents the number of roses and p represents the number of petunlas

Given : 7 roses and 8 petunlas

r=7 and p=8

Plug in the values in the given expression and find out the total cost

`3r+2.5p`

`3(7)+2.5(8)`

41

the cost of 7 roses and 8 petunlas is $41