Jackson has twelve crayons. Emma has twice as many as Jackson, and Lily has twice as many as Emma. How many total crayons?

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?