Respuesta :
y=$1.50x, where x is the number of energy drinks bought. Each bottle costs $1.50.
Answer:
y=1.50x ...........
Step-by-step explanation:
Let x be the per-bottle price of the energy drink. Then:
3x=y=4.50
x=4.50/3
=1.50
Then:
y=1.50x ...................