First, you convert 2 3/4 to a improper fraction, which is 11/4. Then you multiply 4/5 with 11/4, after you cross simplify the fractions, you can multiply 1/5 with 11/1, which equals 2 1/5. Hope can help you a little bit. :)
Answer:
The answer is

Step-by-step explanation:
Remmeber:

If the shoes are 3.5kg already this is what I got you need to convert all the numbers to kg for example 95g=.095kg and 8580g=8.580kg with that being said I calculated all items to equal 14.175 kg so if you minus it from total you get 5.825kg remaining I believe that is what you want please for more clarity send me message I will help as much as I can
Answer:
$1
Step-by-step explanation:
8x+4y=-12
Put the equation in the form y=MX+b (m=slope)
4y=-8x-12
Y=-2x-3
The slope is -2
Hope this helps!