Circle o has a circumference of 36cm. what is the length of the radius

What is the quotient of -3/8and-1/3?

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?

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²