Carla and Jonah are working together to determine if quadrilateral CDEF with coordinates C(2,3), D(1,2), E(4,1), and F(5, 3) has a right angle. Who is on track to get the correct answer and why?

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

What is the rate for one gallon of gasoline

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?