Are the two events “choosing a sophomore” and “choosing someone who replied ‘yes’” independent events?

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased. for each new desk that is purchased, by how much does the amount of money left in the school’s desk fund decrease?

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m