Carmen made $192 for 12 hours of work. At the same rate, how many hours would she have to work to make $128?

= 12 miles per hour

Step-by-step explanation:

This is a fraction equal to

30 miles ÷ 2.5 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 2.5

30 miles÷ 2.5

2.5 hours÷ 2.5

=  

12 miles

1 hour

=  

12 miles

hour

= 12 miles per hour

step-by-step explanation:

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look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).