74. one triangle has side lengths of 5 inches, 12
inches, and 13 inches. the side lengths of a
second triangle are 15 inches, 36 inches, and 39
inches. what is the constant of proportionality
between the two triangles?

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

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.