Pls help with these 3 math questions

The first question- 2-1.8 centimters, just subtract 49.2 from 51

The second question-2-1.052 meters, just divide

The thirs question-3-115, just divide

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

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