Need with simplifying expressions.

Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why