Element X decays radioactively with a half life of 11 minutes. If there are 790 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 40 grams?

What is the cube root of -1,000p^12q3? -10p^4 -10p^4q 10p^4 10p^4q

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)