Is you add all the ones you get 9 and if the mean is 10 sum of numbers/number of numbers so N has to be 91 because 91+9=100 100/10(number of numbers)=10
$2.80 but if rounded to the nearest penny that would be $3.00. Hope this helps!
21 or 0.21 they are the same
the area in square feet is 4400. (because to find the area of the rectangle you multiply the 2 side lengths, 100 and 80 which gives you 8000, then you find the area of the square, multiply 60 by 60 which is 3600, then you subtract the total area of the backyard by the area taken up by the garden, 8000-3600, which gives you your total of 4400.)
Answer:
4
Step-by-step explanation: