The concentration C(t) of a certain drug in the bloodstream after t minutes is given by the formula C(t)=0.04(1-e^-0.2t) what is the concentration after 5 minutes? Round to three decimal places

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much