Y varies jointly with x and z, what is Y when X = 10 and Z = 4 if Y = 36 when X = 9 and Z = 1

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

What are the soultion(s) to the quadratic equation 40- x^2=0

Find dy/dx using implicit differentiation ln(20+e^xy)=y