Which expression is equivalent to 14j - 7j + 9 + 4k + 6

A) 7j + 4k + 15
B) 21j + 9 + 10k
C) 7j + 13k + 6
D) 21j + 13k + 6​

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.