Mila earns money each week by tutoring and by babysitting. She charges twice as
much per hour of tutoring as per hour of
babysitting. This week, she works 8
hours. If she charges $13 per hour of
tutoring and earns $84.50 this week,
how many hours does she tutor?

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

y = i/2 xtnop + (3i/2 tnop+ 1)

step-by-step explanation:

the picture is the step by step explanation.

the answer is a.

135 and 80

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