Pls help i really stuck it my test and i don't wanna fail

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68