Can somebody me writing a number sentence that tells what does the model represent

Can someone pls ! pls answer all. no explanation needed..

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

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4