Please help on this thank you

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

What are the coefficients to balance the following equation? ba+br=babr2

The dashed segment of the plotted experiment in the graph in the l