Mark’s earnings vary directly with the number of hours he works and can be modeled by the equation e = 8.50h, where e is his weekly earnings, and h is the number of hours he works that week. how many hours does he have to work to earn $340?

The triangles are similar. what is the value of x? enter your answer in the box. x = two right triangles. the larger right triangle is labeled x on the longer leg, 12 on the shorter leg and 20 on the hypotenuse. the smaller triangle is labeled 4 on the longer leg, 3 on the shorter leg, and 5 on the hypotenuse.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Simplify the expression. -2/5(10+15m-20n)