maco is selling floral arrangements each arrangement uses 1 vase and 11 orchids each vase costs Marco 4.00$ let be the cost of the arrangement and r be the cost of the 1 orchid which equation should Marco use to find the total cost of each arrangement.
A. 11= C +4r
B. 11C = r + 4
C. C= r + 4
D. C = 11r + 4
