Is y=2000e^-0.273x a growth or decay ?

What is the volume of the sphere shown below with a radius of 3?

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?