How much water should be added to 30 liters of a 40% acid solution to reduce it to a 30% solution

Three ratios equivalent to 20and 15

Hugo is buying DVDs that cost $15 each. He has a coupon for $5 off his total purchase. Write an equation to find the c the total amount he will spend on any number of DVDs d. Then use the equation to find the amount he will spend if he buys 6 DVDs.

Booker owns 85 video games. he has 3 shelves to put the game on. each shelve can hold 40 video games how many more video games does he have room for?

If x = 3 what is the value of x squared x

Carroll Corporation has two products, Q and P. During June, the company's net operating income was $22,500, and the common fixed expenses were $49,000.

The formula to convert °C to °F is: °F = 32 + °C x 9 : 5 The temperature of the water in a sports centre's swimming pool is 27° C. What is the temperature of the pool in °F?

Mrs drain divided her collection of 52 glass bears into equal groups. she had one bear left over how many groups did mrs. dryson make how many bears are in each group

What is the mode of the following set of numbers? 15, 20, 18, 20, 15, 20 A 20 B 18 C 5 D 19.

3 quarts equals blank pints

Find the measures of two angles one positive and negative that are coterminal with pi/2