What is 4n to the 3rd power times 7n to the 3rd power

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.