The mass of mars is 6.42 X 10/23 kilograms. the mass of mercury is 3.3 X 10/23 kilograms. a. what is the combined mass of mars and mercury expressed in scientific notation?

b. what is the difference in the mass of the two plants expressed in scientific notation?

First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement