Me with this i'm confused if the answer is "none of these" or "space"

The reflexive property of congruence lets you say that ∠pqr ≅

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)