–12 – 4.8 ∙ (–2 + –8) whats this equal need hlp asap 10 pts and i will befreind

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?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Secant be and cf intersect at point d inside a what is the measure of cde