1) evaluate 5x^3 + 2 for x = -1.
2) simplify -|-5 + 2|.
3) simplify 6x + 6 + 5x - 8.
4) simplify 6 - (-2) - 3(-5).
5) how many terms are in the expression shown below?
x^2 - 10xy + 3y + y^2 - 1

How do i solve using pythagorean theorem?

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.