Tom makes 142.35 in 3 days. How much does he make in 2 days ?

Ihave trouble finding the nth term of a linear sequence

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?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]