Answer:
b
Step-by-step explanation:
hjfbxosnodjhxjdbodbdidbjdhdodhdidhidjdbdibdidbfi
X^2-11x+28=0
(x-7)(x-4)=0
x-7=0
x=7
x-4=0
x=4
If you put them into to proportion
156/400 and then put a variable for the unknown x/1200
1200 divided by 400 = 3
156 times 3 = 468
468 order salad out of 1200
Answer:

Step-by-step explanation:
we know that
The total fabric that Mrs. Lin needs is equal to

Convert mixed number to an improper fraction



substitute



Convert to mixed number

3.14*r^2
Hope it helps you figure them out