What is the answer please help me

Evaluate cos2θ for cosθ = square root of 3/2

What is the value of the expression below? 148+(-6)| + |– 35= 7|

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.