Lottery ticket to game a cost five dollars. The 10,000 tickets sold, one wins $10,000, five wins $2000, and 20 wins $500. Find the expected value of the winnings for a single ticket.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?