If S is between R and T, then RS + ST = RT. always sometimes never

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1