3/5÷1/4 please helplp

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 .

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6