This sum of -7 times A number and eight times the sum of the number and one is the same as the number -7

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Find the zeros of each function. f(x) = x^2 + 5x - 6