A school paid $31.50 for each calculator, a. If the school bought x calculators, how much did
they pay?

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 .

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?