Alexis becca and cindy do volunteer work at adopt a pet animal shelter. they worked a total of 285 hours at the shelter last summer. alexis work 15 hours less then back up cindy worked for more than twice as many hours as back up as back up

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12