A jar contains four white marbles, five red marbles, and six black marbles. if three marbles were selected without replacement at random, find the probability that they are all red.

The Hamied family stayed at a hotel for n nights. The cost was $80 per night plus a one-time fee of $20 because they brought their dog. Which expression represents the total cost of their hotel stay?

Evaluate 5*[3 + (16-4) ]/3 9 19 21 25

during the first part of a trip. a canoeist travels 16 miles at a certain speed. The canoeist travels 3 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3hrs. What was the speed on each part of the trip?

What do exponential functions model in the real world? How does the standard equation form of the exponential equation change in each situation?

A student mixes chemicals a and b together and records the amount of time it takes for a color change to occur. the student repeats the process 5 more times each time changing the amount of chemical b used in the mixture.

What percent of a circle Is 3/12 of a circle

Kyle walks 3 blocks south from his home to school, and jana walks 2 blocks north from her home to kyle's home. how far and in what direction is the school from jana's home.

What's the greatest common for of 32 and 52

A 6.7 kg object moves with a velocity of 8 m/s. What it's kinetic energy?

A free driver is driving at a constant rate of 0.75 feet per second