A chemist needs to mix an 18% acid solution with a 45% acid solution to obtain 12 liters of a 36% acid solution. How many liters of each of the acid solutions must be used?

Haylee has $440 in her savings account. She deposits $65 in her account every week. How much money will Haylee have in her savings account after 25 weeks?

What is the lcm of 9and 4

A rectangle has a height of 555 and a width of x^2+2x 2 + 2x, squared, plus, 2. Express the area of the entire rectangle. Expression should be expanded.

Solve the equation for q. B = (q+z/3) h

Every day Kim does leg muscle exercises for 3/7 of an hour and foot muscle exercises for 2/3 of an hour. Which exercises does she spend the most time doing and by how much

Twice the difference of a number and seven

Dec 14, 2015 - You and a friend each have a collection of tokens. Initially for every 8 tokens you had, your friend had three. After you give half of your tokens to your. friend

The population of a city is currently 1500. It is expected to triple every - years. Find the population after 30 years.

What is the perimeter of the regular pentagon when the sides are all 8 in. long?

What is the area of a rectangle when the length of the rectangle is 3 inches greater than the width