Find the value of 67cm-28mm

642 mm or 64.2 cm

Step-by-step explanation:

67cm-28mm

We need the same units

67 cm * 10 = 670 mm

670 mm - 28 mm

642 mm

We can convert back to cm by dividing by 10

64.2 cm

642mm or 64.2 cm

Step-by-step explanation:

67 cm = 670mm

So, that's 670-28mm = 642mm

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values