The mean of a, b,c, d is 12 & mean of e, f is 6.find the mean of a, b,c, d,e, f

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?

Which value of y will make the inequality y< -1 false?

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?