. A vase contains 800ml of water. A daffodil is placed in the vase and after 5 days the vase contains 619ml of water.
Assuming the water in the vase decreases exponentially,
how much water was in the vase after 8 days?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Enter the amplitude of the function. f(x)=3cosx

Answer for 15 points (look at the image)