You should also try wolframalpha.com it can also help u. Just send this exact picture and then they'll help you
hope this helps
Hey there!

Good luck on your assignment and enjoy your day!
~
Answer:


Step-by-step explanation:



The interval notation will be:

The contrary,

is 
Simplify 2/8
2/8=1/4
1/4 of all pizzas=1 and 1/2 pizza
convert to improper
1 and 1/2=1+1/2=2/2+1/2=3/2
1/4 of all pizzas=3/2 pizza
times both sides by 4/1
4/4 of all pizzas=12/2 pizza
all pizzas=6pizza
6pizzas were orderd