If 500 mg of a certain medication is given to a patient, and the amount of the medication in the patient’s system is cut in half every hour, then amount A of medication in the patient’s system can be found using the formula A(t)=500(1/2)^t. About how long will it take to have less than 40 mg of the medication left in the patient’s body?

A. 3.7 hr
B. 1.4 hr
C. 6.1 hr
D 0.3 hour

Which of the following graphs could represent a cubic function?

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat

Urgentwhat is the area of the figure?