Method 1: 4 1/2 = (4.2)+1 over 2. And that equals 8+1 over 2. To get a total of 9/2 ft^2. Then we take the 13/1 students and multiply by the 9/2 and end up with 13 x9 over 2x1 solving that equation to get a fraction of 117/2 ft^2.
Method 2: For the second method we start with 4 1/2 = (4 + 1/2) then we multiply 13 (4 + 1/2) now we have (13 x 4) + (13 x 1/2) which equals to (52) + (13/2) Now we can convert 13/2 is the same as 6.5 or 6 1/2 so now we just add 52 + (13/2) to get 58 1/2 ft^2 as the answer.
58 1/2 ft^2
A) 15(2/5) = 30/5 = $ 6.00
40(1/3) = 40/3 = $13.33333 repeated or we can change that by rounding to get $13.33
10(3/4) = 30/4 = $7.50
B)
$ 6.00
$13.33
$7.50
6.00 + 13.33 + 7.50 = $26.83
A.
Juan Increase 25/350 = .071 * 100 = 7 %
Rhia Increase 75/275 = .273 * 100 = 27 %
Max Decrease 40/400 = .1 * 100 = 10 %
b.
Juan sold more than $355 but his increase was less than 10% so he did not get a bonus.
Rhia had an increase more than 10% but she did not sell more than $355 so she did not get a bonus.
Max had a decrease so he did not get a bonus.
Hope this helps! Have a great day! :D
Sorry i am like a year late! I had some of these questions in my assignment.