Help me please I really need help with this please someone

Step-by-step explanation:

For number 5 the answer would be economy because there is a 2 dollar difference and the shampoo bottle has 20 more ounces then the regular bottle. The 2 dollar difference changes the whole thing.

For number 6 the answer is still economy because you get more ounces in the bottle of shampoo for a 3 dollar difference in the price.

:)

BTW HOPE YOU HAVE AN AMAZING DAY!!!

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15