The geek dormitory has 75 rooms numbered 0 to 74. each student is assigned a room whose number is the student's id number modulo 75. how many students must there be to be certain that at least 2 students will be sharing a room?

Ellen bought soccer shorts on sale for $6 off the regular price of $40. what percent did she save?

A small class has 9 students, 3 of whom are girls and 6 of whom are boys. The teacher is going to choose two of the students at random.

A 10-foot ladder is to be placed against the side of a building. The base of the ladder must be placed at an angle of 72 degrees with the level ground for secure footing Find to the nearest inch how far the base of the ladder should be from the side

What is the prime factorization 10,000 using exponent's?

Jake and Abigail worked a job together. Jake earned 3/4 of what Abigail did. Together they earned $140. How much did each earn?

On a number line, why is 0 important?

Simplify the expression (x^-2y^-4x^3) ^-2

Find the solution set. t2 = 16 Separate the two values with a comma.

A box of oat cereal costs $3.90 for 15 ounces. A box of rice cereal costs $3.30 for 11 ounces. Which box of cereal cost less per ounce

Solve for x and graph: show your work! -9x - 30 < 15?