Richard's checkbook register as of 02/19

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

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

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.