Leo needs 10

roses and 15

daisies for every 5

bouquets he makes for a flower shop. how many roses and daisies does he need for 3 bouquets?

To find the answer to this question, I first divided the number of roses and daisies by the number of bouquets. 

(10/5 and 15/5) This allowed me to find out that each bouquet needs 2 roses and 3 daises.

From here, I multiplied 2 by 3 and 3 by 3 to find out how many flower Leo would need for 3 bouquets. 

Leo will need 6 roses and 9 daisies for 3 bouquets.

The correct answer is $90