Help with this one pls!

Show steps if u can, thanks :)

319.90 (if i rounded right)(check and see if i did)

Step-by-step explanation:

82 x 390.15=31992.3

31992.3/100= 319.923

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