Factorise:
1) 10x² + 5xy
2) 15xy + 3y²
3) 14x²y² + 7y

Which is the value of this expression when p=(-2) and q=(-1)

Combined megan and kelly worked 60 hours. kelly worked twice as many hours as megan. how many hours did they each worked?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)