What is the measure of each angle of a regular 21-gon? If necessary, round to the
nearest tenth.

What expression is equivalent to 42x-56y

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.