An electronics store sells an average of 60 entertainment systems per month at an

average of $800 more than the cost price.

For every $20 increase in the selling price,

the store sells one fewer system. What

amount over the cost price will maximize

profit?

if

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

The tile along the edge of a triangular community pool needs to be replaced? ?