What is 64 = 4e what is 3x =102
what is t + 28 =51
what is r - 10 = 30
what is p - 11 = 39
what is 61 = 28 + n
what is 95 = 5k

pls help and show steps pls :)

Solving these is about doing the opposite of what's being done to the variable.

64 = 4e

In this one, you have 4 times e.  To do the opposite of multiplying by 4, you need to divide by 4.

    64/4 = e

        16 = e

3x =102

This has 3 times x.  Again, the opposite of multiplying by 3 is dividing by 3.

    3x = 102

      x = 102/3 = 34

t + 28 =51

Here you have 28 added to t.  The opposite of adding is subtracting, so subtract 28 from both sides.

    t + 28 = 51

            t = 51 - 28 = 23

r - 10 = 30

Now you have 10 being subtract from r, so the opposite would be to add 10.

    r - 10 = 30

           r = 30 + 10 = 40

p - 11 = 39

Again, since we have "–11", we need to add 11 to both sides.

    p - 11 = 39

          p = 39 + 11 = 50

61 = 28 + n

If we have 28 added to n, then we need to subtract 28.

         61 = 28 + n

  61 - 28 = n

         33 = n

95 = 5k

The opposite of multiplying by 5 is dividing by 5.

     95 = 5k

  95/5 = k

      19 = k

So it's just seeing what's being done and doing the opposite.

c is the answer

step-by-step explanation:

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