Which pairs of angles in the figure below are vertical angles?
i chose a, c but i do not know if thats correct i know d is not

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

The high temp today was 62°. when nighttime comes, the temp will drop 40°. by 4am the temp will drop an additional 40°. what is the temp at 4am?

Thirteen bowlers were asked what their score was on their last game. the scores are shown below 190,150,154,194,181,190,170,151,170,178,161,180 find the range of the bowlers score a.56 b.44 c.34 d.23