Answer:
Calculus is the branch of mathematics studying the rate of change of quantities (which can be interpreted as slopes of curves) and the length, area, and volume of objects. The chain rule is a formula for the derivative of the composition of two functions in terms of their derivatives.
A mixed fraction... is made out of a whole number and a fraction. 3 7/10
What its saying is that u have a discount price and that goes up by 8% so we know its not greater than 1