Driti1

20 

it is 2.333. Since 1/3 is .3, just add it to the 2. Also if you see a number like that occurring, put a bar on the top of the first three. We call that type of decimals repeating decimals.

5^18 - 25^8 
= 5^18 - 5^16 
= 5^16(5² – 1) 
= 5^16(24) 
= 24 × 5 × 5^15 
divide by 120 = 120 × 5^15/120 divisible 
= 5^15 

38^9 - 38^8 
= 38^8(38 –1) 
= 38^8 × 37 
divisible by 37 

10.308 

To convert a mixed fraction to an improper fraction, follow these steps:

1. Multiply the whole number part by the fraction's denominator.

2. Add that to the numerator.

33. Write that result on top of the denominator.

19 

Write down the equation for calculating the volume of a sphere. This is the equation: V = ⁴⁄₃πr³. ...

Find the radius. If you're given the radius, then you can move on to the next step. ...

Cube the radius. ...

Multiply the cubed radius by 4/3. ...

Multiply the equation by π. 

7x8

12