Please help with these questions
1. write all the terms in the given algebraic expression
a. 2x^2-7
b.3x^2 + y^2 - 3xy + 9
2. Is -2(x+3)-3x-7 equivalent to -(5x+13)? show every step of your work
3. solve for y
-3(3y-7)-7y-3=10
4. solve 3/8k < -5/4 for k
5. 36 is 2 times the difference of two less than a number