Paul scored z points playing a math game. meghan scored 4 times as many points as paul. kieran scored 5 more points than meghan.
a. find the number of points meghan scored in terms of z.
b. find the number of points kieran scored in terms of z.
c. find the total number of points the three players scored in terms of z.

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.