a ticket to the art museum cost $8 for adults and $4 for children.a class of 22 children and adults go to the museum for a fieldtrip.wich equation shows how to find f,the total cost of the museum entrance fee?

A f =(8×8)+(4×22)
B f=(8×4)+(8×22)
C f=(4+22)×(8+8)
D f=(4×22)×(8×8)