a boy is 26 years younger than his father in 3 years time his age will be one third his father's age. Find the boy's present age

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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?

What is the measure of one interior angle of a pentagon