A store sells flower arrangements at a cost of $28 each. Which statements are true regarding the price of the arrangements? Select three options. If the price is marked down by 10 percent, the new price will be $25.20. If the price is marked down by 25 percent, the new price will be $21.00. If the price is marked down by 35 percent, the new price will be $18.20. If the price is marked down by 40 percent, the new price will be $29.80. If the price is marked down by 50 percent, the new price will be $19.00.

10%=$25.20

25%=$21.00

35%=$18.20

Step-by-step explanation:

A mark-down in price of 10% is the same as 90% of the original price. 90% can be expressed as 0.9. $28.00(0.9)=$25.20. This same explanation holds true for the 25%/35% mark-down: $28.00(1-0.25)=$21.00; $28.00(1-0.35)=$18.20. Additionally, if you try this with the 40%/50% mark-downs it doesn‘t work.

a b c

Step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0