The measure of ∠m is 47° and the measure of ∠n is 43°. therefore, ∠m and ∠n are referred to as angles. a. vertical b. supplementary c. corresponding d. complementary

Complementary angles add to 90°. D is your answer
supplementary add to 180°
we can't say anything specific about vertical angle pairs and corresponding pair sizes except that the pairs are congruent

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !