Order the numbers from least to greatest. 3 29\40, 3 19\20, 3 1\2

29/40= 0.725

19/20 = 0.95

1/2 = 0.50

least to greatest = 3 1/2 ,  3 29/40 , 3 19/20 

answer:

#1:   Option A, 12 - (2^2 * 3)

#2:  Option B, 2x + 8

#3:  Option A, n + m + m + m + n + n and 3(m + n)

#4:  Option B, 4(3x + y)

Step-by-step explanation:

#1:  Difference of 12 and the product of 2 squared and 3

12 - (2^2 * 3)

answer: Option A, 12 - (2^2 * 3)

#2:  Distribute 2(x + 4)

2(x + 4)

2x + 8

answer:  Option B, 2x + 8

#3:  Which is equivalant

n + m + m + m + n + n and 3(m + n)

3n + 3m

3(n + m) or 3(m + n)

answer:  Option A, n + m + m + m + n + n and 3(m + n)

#4:  8x + 4x + y + 3y

Combine like terms

12x + 4y

4(3x + y)

answer:  Option B, 4(3x + y)