URGENT!!! The PTA sells 1000 tickets for $5 each. One tickets will be randomly selected, and the winner will receive an iphone 11 valued at 700. b) Find the expected value for a person that buys one ticket. Show your work.

c) What price should the PTA change if they want to make this raffle "fair"?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is r i 4.5+10r=-6.5 with work pls