21 Part A
Consider the similar triangles below:

Find the scale factor?

Part B
Find the length of side PR?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

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

Which statement about the annual percentage rate (apr) is not true?