Symplify 5+2(x-5) solve the equation with steps. my answer choices are 2x 2x+5 2x-5 7x-35

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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?