10. The sum of the measures of the angles of a triangle is 180, Write and solve an equation to find the missing measure.

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

4

step-by-step explanation:

answer: idk

step-by-step explanation:

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