If f(x)=-2x-5 and g(x)=x^4 what is (g*f)(-4)

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

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Tim tradesman pays $2,000 annually for $125,000 worth of life insurance. what is the cash value of the policy after 10 years? 11,125 13,125 17,800 111,250