Its B trust i took the test and got it right
This is esay to do when you realize the the speed of mowing is addtive. This is if John mows at 1 lawn / (2/3) hour and Gerge mows at 1 lawn / 1hour, the total speed of mowing is:
1 / (2/3) + 1 = 3/2 + 1 = 5/2
=> 5/2 of lawn per hour
Now, the time is calcualted as the amount of lawn divided by the speed:
1 lawn / (5/2 lawn/hour) = 2/5 hour.
Answer: 2/5 of an hour.
I believe it is 10 and however many zeros there are and there's 6 so if I'm not mistaken the answer is
.
An 8 sided polygon is, an Octagon
$1.79 for bananas ($1.785 to be exact)
$5.36 for pineapples ($5.355 to be exact)
