PLZ HELP ME!!

Which equation can be used to determine p, the cost of s sunglasses?

p = 4.50 + s
p = 4.50s
s = 4.50 + p
s = 4.50p

PLZ HELP ME Which equation can be used to determine p the cost of s sunglasses p 450 s p 450s s 450 p s 450p class=