Please Help!!! 30 pts and brainliest if its right! Use the figure and flowchart proof to answer the question:
Which property of equality accurately completes Reason C?

Addition Property of Equality
Division Property of Equality
Substitution Property of Equality
Subtraction Property of Equality

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23