A store charges $1.50 for a 20-oz bottle of sport drink. Which equation best represents the total cost, y, as a function of the number of bottles, x? y
=
20
x
y is equal to 20 x

y
=
1.5
x
y is equal to 1 point 5 x

x
=
1.5
y
x is equal to 1 point 5 y

x
=
20
y
x is equal to 20 y