The associative property<span> is when you can add and multiply no matter which way the problem is, for example, 2+4 = 6 and 6-4= 2 or 4+2= 6 </span>
(1) x+y+z=1300
(2) x+y=780 => x = 780 - y
(3) y+z=850 => z = 850 - y
Replace x and z with y in function (1)
780 - y + y + 850 - y = 1300
1630 - y = 1300
y = 330
Therefore, x = 780 - y = 780 - 330 = 450
z = 850 - y = 850 - 330 = 520
Dave can do 450 catalog orders per day
Frank can do 330 catalog orders per day
Kathy can do 520 catalog orders per day
14 is 81% because I just put it into a calculator
Square has 4 sides so you would use 16 1/8 inches of ribbon per side.
So that's 16 1/8 + 16 1/8 + 16 1/8 + 16 1/8 = 64 4/8 = 64 1/2
Final answer: 64 1/2 inches
It’s definitely B I believe
