Spanko sells every shirt for an amount of $20. There is a 10% discount.
What is the price now??

$18

Step-by-step explanation:

Discount formula: S = p - rp → S = 20 - (0.10×20)

S(sale price)= final amount

r(discount percentage rate)= 10% or 0.10

p(original price)= $20.00

Step 1) Convert 10% to a decimal: 0.10

S = 20 - (0.10×20)

Step 2) Multiply that by amount (0.10×20=2.00)

S = 20 - 2

Step 3) Subtract from amount (20−2.00)=$18.00

20-2=18

S=18

Sorry if that was confusing.

✨Hope this helps✨