8. Sodium-24, radioactive decay: The radioactive element sodium-24 has a half-life of 15 hr and is
used to help locate obstructions in blood flow. If
the procedure requires 0.75 g and is scheduled to
take place in 2 days (48 hr), what minimum
amount must be on hand now (to the nearest
hundredth of a gram)?

Which of the following points is collinear with (-2,1) and (0,3)

Problem situation: caren is making rice and beans. she can spend no more than $10 on ingredients. she buys one bag of rice for $4.99. beans cost $0.74 per pound. how many pounds of beans, x, can she buy? inequality that represents this situation: 10≥4.99+0.74x drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.