The average age of three people running for election is 42. A fourth person joins the race and the average drops to 40. What is the fourth person's age?

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

Determine domain and range, largest open interval, and intervals which function is continuous.