Frank had b bottles of water before his friends came over. His friends drank 7 bottles of water. After his friends left, Frank went to
the store and bought 18 bottles of water. Which expression shows how many bottles of water Frank has currently?
A.b + 7 + 18
B.b - 7 + 18
C.b - (7 + 18)
D.b - 7 - 18

Respuesta :

The answer is B, because it all goes in order so no need for parentheses

Answer:

B

Step-by-step explanation:

Had b number of bottles and lost 7

b-7

Gained 18 more

b-7+18