Arrange the following in ascending order: 2.21, 2.021, 2.221, 2.2101

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

probably .5

i can on others if necessary.

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2