Can you make every number between 1 and 20 using only 4,4,4,4 and an operation? ! need this fast. 20 points will reward

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25