A line drawn from one side of a circular plate to the other, through the center of the plate, measures 25 centimeters. What is the approximate area of the plate to the nearest square centimeter?

39 centimeters²

79 centimeters²

156 centimeters²

491 centimeters²

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?

Find the value of x for which the lines are parallel.

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths