Find the area, in square units, of rectangle ABCD plotted below.
D(0,6)
A(-4,5)
C(2,-2)
B(-2, -3)

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?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m