Data science Drawing two marbles without replacement
from a bag containing three green
marbles and three black marbles

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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.