Write an expression to represent:
one minus the quotient of one and a number x?

Find the solution of system of equation y= x-4 y=4x+2

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree