What's the equivalent expression for 6(7 - 3y) + 6(y+ 1) ^^ i'm stuck on this one ugh! ?

Use the multiplier method to incrases £258 by 43%

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

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?