Respuesta :
Answer:
Step-by-step explanation:
Let x represent the normal price of each cookie.
Today each cookie costs 0.75 less than the normal price. This means that the price of buying one cookie today would be
x - 0.75
Right now it you buy 7 of them it will only cost you 2.80. Therefore, the equation to determine the normal price of each cookie would be expressed as
7(x - 0.75) = 2.80
Expanding the brackets, it becomes
7x - 5.25 = 2.8
7x = 2.8 + 5.25
7x = 8.05
Divide both sides of equation by seven $.75 equals $2.80/7 and $.75 to both sides of the equation 40+75 equals $1. and $.15
