30 points!
the work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:
step 1: 8 + 12x
step 2: 4(4) + 4(8x)
step 3: 4(4 + 8x)
step 4: dimensions of the rectangle are 4 and 4 + 8x
in which step did the student first make an error and what is the correct step? step 2; 4(2) + 4x(2)
step 2; 4(2) + 4(3x)
step 3; 4 + (4 + 8x)
step 3; 4 + (4 ⋅ 8x)

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

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step-by-step explanation: