The total cost of a bouquet of roses at a flower shop depends on the number of roses ordered. The vase cost $5, and each rose...

Answer: 
c = 5 + 2.25r
The total cost of a bouquet of roses at a flower shop depends on the number of roses ordered. The vase cost $5, and each rose cost $2.25. Which equation can be used to find 'c', the total cost of a bouquet with 'r' roses?