find the value of (x+y)

In the diagram, \(\overline{MP}\) is a tangent to the circle NQR, ∠NQR, ∠PNQ = 64 and | \(\overline{RQ}\) | = | \(\overline{RN}\) |. Find the angle market t. 

In the diagram, PQRS is a circle. find the value of x.

Given that sin x = 3/5, 0 ≤ x ≤ 90, evaluate (tanx + 2cosx)

In the diagram, line \(\overline{EC}\) is a diameter of the circle ABCDE.

If angle ABC equals 158°, find ∠ADE