Steven earns extra money babysitting. he charges $37.50 for 6 hours and $50.00 for 8 hours. enter an equation to represent the relationship. let x represent the number of hours steven babysits and y represent the amount he charges. the equation is y =

Using elimination, what is -4x+2y=-12 4x+8y=-24

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?