Waylon is back-to-school shopping with his mom at a large department store. He’s picked out the following items: 3 pair of pants for $87 total, 4 t-shirts for $48 total, 1 backpack for $35, 1 hoodie for $26, 1 pair of shoes for $37. When they get to the register, they see this sign:

Waylon's Purchase will cost $198.05, and section B depends.

Step-by-step explanation:

Section A is 85% of 233 since thats the total, making the answer to section A $198.05. The answer to section B depends because if he wants more school supplies, then yes, he would want to buy more things for better deals. But if he’s on a budget, then he wouldn't want to spend as much money since saving 20% on something over $300 is more than saving 15% on something over $200. THIS IS ONLY THE ANSWER IF YOU SEE A SIGN IN THE ASSIGNMENT THAT SAYS: Spend $100, save 10%, spend $200, save 15%, spend $300, save 20%, and spend $400, save 30%.

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