Please help with these questions

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

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Given the following point on the unit circle, find the angle, to the nearest  tenth of a degree, of the terminal side through that point, 0≤θ< 360. p=([tex]\frac{ \sqrt{10} }{4} [/tex]