Chen is bringing fruit and veggies to serve at an afternoon meeting. he spends a total of $20.70 on five pints cook veggies and 7 pints of cut fruit.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.