There is a sales tax of $24 on an item that costs $276 before tax. a second item cost $218.50 before tax. what is the sales tax on the second item?

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?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

For the inequality |c| < |d| to be true, which of the following must be true?