Sal earns $480 per week. Lidia earns $300 per week. If Sal works 40 hours per week and Lidia works 25 hours per week what are their ratios of earnings per week? Are their ratios equivalent?

Which of the following of the following sets of side lengths could not form a triangle?

The verbal translation for the difference of m and 7 increased by 15

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?