<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
A) Let's first consider the effect of the tax:
total payment = (food cost) + 25% × (food cost) = (1 + 0.25)×(food cost)
If the cost of a sandwich is x dollars, the cost of 6 sandwiches will be 6 times that, or 6x dollars. When the $2 cost of the soda is added, we get ...
food cost = 2 + 6x
Putting this into the equation for total payment, we find the expression to be ...
total payment = 1.25(2 +6x)
_____
B) Evaluating the expression for part A with x=5, we get ...
total payment = 1.25(2 +6·5) = 1.25·32 = 40 . . . . dollars
Answer:
x = -21/11
Step-by-step explanation:
6(2x + 4)2 = (2x + 4) + 2
12(2x +4) = 2x + 4 + 2
24x + 48 = 2x +6
22x = -42
x = -21/11
to 
to 
