Answer:
Step-by-step explanation:
(11,13) (8,18)
slope = y₂ - y₁/x₂-x₁
= 18- 13 / 8-11
= 5 / - 3
= -5/3
First let us calculate the total cost before tax:
1.06 * cost = 16.43
cost = 15.5
Therefore the cost of sunscreen is:
2 * Sunscreen + 6.50 = 15.5
2 * Sunscreen = 9
Sunscreen = $4.50
<span>Hence each bottle of sunscreen cost $4.50</span>
A=2
B=9
81-4*2*c = 137
-8c=56
C=-7
2x² + 9x - 7 = 0
