How to write 830040 in expanded form with exponents

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Need plz been trying to do it for a long time and still haven’t succeeded