Choose all that correctly compute the total cost, including the discount and tax. (round to the nearest hundredth)

25% off $39.25, and an 8% sales tax
total cost = $31.79
20% off $66.75, and an 8% sales tax
total cost = $57.67
40% off $45.90, and an 8.5% sales tax
total cost = $29.88
10% off $22.75, and a 7.5% sales tax
total cost = $20.10

Whose conclusion is correct? choose all that apply. (two max) elijah emily edward esme

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?