Asubstance with half life is decaying exponentially. if there ate initially 12 gramss of the substance and aftwr 70 minutes there are 7 grams after how many minutes will thrre be 2 grams remaining? round your answer to the nearest while nimber

We must first determine the shape of a rectangular prisms _ a0 to find area of the prism

Find the solution of system of equation y= x-4 y=4x+2

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality