Which equation can be used to solve for x in the following diagram? Choose 1
A) 60+ (4x – 20) = 180
B) 60+ (4x – 20) = 90
C) 60 = = (4x – 20)
D) 60 +90 + (4x – 20) = 180

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

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.