Element X decays radioactively with a half life of 10 minutes. If there are 960 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 20 grams?

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x