Answer:
Step-by-step explanation: It would take him 15 minutes more to mow the whole yard
1/2 hour is 30 mins divided by 2 which is 15 mines times 3 is 45 mins total mins
1/9
because there are 21 chips in the bag 7 of them are yellow so 7/21
but you draw twice so you square it (7/21)^2=1/9
The answer should be1200 feet