The cost of laying power line underwater is 3 times that of underground. An island is 4 km from the shore and a power station is at distance 8 km from the point on the shore which is closest to the island. How should the power line be laid so that the cost is minimum

What is the solution of the systems of equations? y=2/3x+3 x=-2

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

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.