At the price of Php 150 per variety show ticket, the quantity of variety show ticket demanded is 1,500 (point A). When price rises to Php 250 per ticket, the quantity demanded fails to 1,000 (point B). Show your solution

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%