Find all points of extrema on the interval 0 2pi if y = x + sin x

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Interpret the following expression (5y^2-7)^3/(2y)^2

An ice cream shop sells 5 times as many cakes cones as waffle cones. use x to represent the number of waflle cones the ice cream shop sells and use the variable to write an expresion for the number of cake cones the ice cream shop sells. enter the expression for the number of cake cones the the ice cream shop sells