A football player starts on the 20 yard line and gains 9 yards. On the next play, he loses 4 yards. The referee says there’s a penalty and takes away the 4-yard loss of yardage. Which expression represents the total number of yards gained?

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

How do i solve uniform motion problems?

The nth term of a sequence in 2n-1 the nth term of a different sequence is 3n+1 work out 3 numbers that are in bothe sequences and are between 20 and 40