each pupil had to answer 50 questions. 5 points were given for each correct answer and 4 points were deducted for each incorrect answer. Jack answered all 50 questions and he scored 97. How many questions did he answer correctly?

For what value of x does 4x = (1/8) x + 5?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, 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.