Element X decays radioactively with a half life of 11 minutes. If there are 140 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 33 grams?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

What is the factored form of the following expressions? d^2 – 13d + 36