If you earn a 9% commission on all sales and you sell $4500 worth of merchandise, how much will you earn before taxes?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10