A population of insects doubles every month. This particular population started out with 20 insects. Write an equation to model this scenario.

Ian has 20 football cards, and Jason has 44 baseball cards. They agree to trade such that jason gives Ian 2 baseball cards for every card Ian gives to Jason. After how many such trades will Ian and Jason each have an equal number of cards?

Mom paid $2.40 for a 3/4 pound of cereal, how much is that per pound

A four pound duck, initially at a temperature of 50 degrees is place in an oven preheated to 375 degrees at 1:00. At 2:15 the duck has reached an internal temperature of 125 degrees. When will it reach 175 degrees.

If julie earns $33.75 for 3 hours write the constant of proportionality for this direct variation

What would be the x-intercept and y-intercept of the equation 2x+3y=3?

At sunset, the temperature was 4 degrees. Then at sunrise the next morning, it was - 7 degrees. What is the difference between these temperatures?

How many possible sandwiches: 4 types of bread & 6 types of cold cuts?

What is the probability of choosing an ace or a black card? 6/13 7/13 8/13

Whats 21/8 as a mixed number

You bought a freezer that is 2 feet wide, 4 feet long and 30 inches deep