In the figure, O is the centre of the circle SQR, RSQ = 110° and PSR is a straight line. Calculate QPS. help me!
I just want to check if my answer is right or wrong. If it is wrong please tell me how to do it.

Which equation matches the graph shown ?

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

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.