Answer:
The equation is ⇒ 7( x - 0.75 ) = 2.8
The normal price of one cookie = $1.15
Explanation:
Let the normal price is x
So, the cost of cookie today is x - 0.75
The price of 7 of them will be $2.8
So the equation will be:
7( x - 0.75 ) = 2.8
Solve for x:
x - 0.75 = 2.8/7 = 0.4
x = 0.4 + 0.75 = 1.15