A cup 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?

How to use replacement in probability

One sixth of thirty six hundredths is less than two tenths less than four write as inequality if closed write true or false

Tyler went to the supermarket to buy food for a food pantry. He has $36, and can carry up to 20 pounds of food in his backpack. Pasta costs $1 for a 1-pound package. Pasta sauce costs $3 for a 1.5 pound jar.

The center of a circle is at (-3, 1) and its radius is 9. What is the equation of the circle? (x-3) 2 + (y+1) 2=81 (x+3) 2 + (y-1) 2=18 (x+3) 2 + (y-1) 2=81 (x-3) 2 + (y+1) 2=18

Abe is going to plant 545454 oak trees and 272727 pine trees. abe would like to plant the trees in rows that all have the same number of trees and are made up of only one type of tree. what is the greatest number of trees abe can have in each row?

Every sixth visitor to an animal gets a free animal calendar. every twentieth visitor gets a free animal toy. which visitor each day will be the first one to get both the calendar and the animal toy?

What is the measure of the angle between a perpendicular bisector and the segment it is bisecting? A. 180° B. 90° C. 45° D. 0°

How many sides does a regular polygon have that has an angle of rotation equal to 20 degrees.

A. How many lines of reflection symmetry does a hexagon have? B. How many degrees is one rotation that will put a hexagon back on top of itself.

There are 125 people in a sport centre. 59 people use the gym. 70 people use the swimming pool. 55 people use the track. 25 people use the gym and the pool. 30 people use the pool and the track. 17 people use the gym and the track.