The prizes that can be won in a sweepstakes are listed below together with the chances of winning each one: $4200 (1/8000); $1600 (1/6900); $500 (1/3300); $300 (1/2000). find the expected value of the amount won for one entry if the cost of entering is 53 cents.

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20

Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.