Acup of coffee contains 129 milligrams of caffeine. suppose caffeine is eliminated from the body at a rate of 14.4% per hour.

what is the 1-hour percent change?

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Evaluate the expression. (9 + 5)(3 + 2)0