Write down all the even numbers from 30 to 300. how many times will the digit "6" appear?

Step-by-step explanation:

In the Numbers from 30 to 99 the 6 will be written 1*4 + 6*1 + 1*1*2 = 12

In the Numbers from 100 to 300 the 6 will be written 0 + 3*1*4 + 3*9*1 + 3*1*1*2 = 45

So the six will be written 12 + 45 = 57 times

Is this right? Do you have the same result?

1.3cm

Step-by-step explanation:

The scale from the actual coin to the photo is 8 mm to 2 cm In the photo,

converting 8mm to cm = 0.8 cm

using ratio and proportion,

if 2cm = 3.25 cm

then 0.8cm = ? less

if less then more devides.

thus ; (0.8cm ÷2cm ) × 3.25cm =

( 0.4) × 3.25cm = 1.3cm

therefore the distance across the actual coin is 1.3cm.