A football team lost 12 yards on the first play, gained 5 yards on the 2nd play and lost 3 yards on the final play. What have they done in all?

Solve the problem by making up an equation. a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 3 times the age of the child?

Which number completes the inequality? 2/3 < _ < 7/9

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)