Elaine lives in hawaii, which has a sales tax of 4%. she just bought a swimsuit whose full price was $80, but she presented the retailer with a coupon for $15, which the retailer accepted. what was the total amount that elaine paid?

a. $67.60
b. $68.20
c. $83.20
d. $65.00

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

What is the point-slope equation of a line with slope -5 that contains the point (6,3)