Determine whether the given number is a solution of the inequality.x ≥ -4, 10

Evaluate.-2×2 for x = 2

Simplify.-5 + 9 – (-8)

Solve using the addition principle and/or the multiplication principle.30 = 9x – 6

Determine whether the given number is a solution of the inequality.x ≥ 9, 9

Solve.10y – 30 = 4y

Solve using the addition and multiplication principles.5 + 3x < 16

Add and, if possible, simplify.- +

Solve the problem.A picture costs $320. The sales tax is $27.20. What is the sales tax rate?

Solve.7x – (3x – 1) = 2