How many positive integers from 1 to 100, inclusive have an even number of positive divisors?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b