Similarly: Quiz 2 (Khan Academy)

How do I solve this?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?