A doctor gives you 15 mg of sodium Pentothal, a truth serum. It is ultra-short-acting, about 60% of the serum dissipates every minute. Calculate the amount of serum left in your bloodstream after 3 minutes.

I f guy walks from his house to school and back, how far does he walk?

What is a real world problem using mixed numbers who some is one and three

If u bring 10 empty bottles to the bottle shop, the bottle shop will change 10 empty bottles to 1 drink. If u bring 100 bottles to the shop. How many drinks will you get?"

Convert speed of 15 miles per hour to feet per second

Two angles are complementary if the sum of their measures is 90 degrees. If the measure of an angle is 7 x degrees, represent the measure of its complement as an algebraic expression in x.

Halfway through a bus route, 23 students have been dropped off and 48 students remain on the bus. write an equation to determine whether there are 61 or 71 students on the bus at the beginning of the route.

In January 2017, Yucca Corporation purchased a mineral mine for $6,400,000 with removable ore estimated by geological surveys at 2,000,000 tons. The property has an estimated value of $500,000 after the ore has been extracted.

What is 5 8/9 - 3 1/6

What 2 integers is - 3 inbetween?

What is thw radius of a circle given by the equation x^2+y^2-2x+8y-47=0