A scientist estimates that there are 2.2 x 10^7 walleye in lake Erie. The total volume of Lake Erie is 4.83 x 10^11 cubic meters. A pool with a volume of 200,000 cubic meters is built to model the lake. How may walleye should be put into the pool to model the conditions in the lake? (Answer must be a whole number)

Anyone know? will mark brainliest if you're correct!

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

The measure of an angle is 117°. what is the measure of a supplementary angle?