Solve and check the equation.6x – (5x – 1) = 2 1.

Solve the inequality and graph the solution set.-8x ≥ 72

Solve the inequality and graph the solution set.5x + 5 ≥ 4x – 1

Solve the problem.A recipe calls for cup of butter. How much is needed to double the recipe?

Use FOIL to find the product.(3x + 5)(x + 4)

Solve the inequality and graph the solution set.-6x ≥ 42

Solve the quadratic equation by factoring.x2 + 4x – 77 = 0

Solve the equation by using the quadratic formula.x2 + 7x + 7 = 0

Solve the problem.The formula P = 0.67×2 – 0.046x + 3 models the approximate population P, in thousands, for a species of fish in a local pond, x years after 1997. During what year will the population reach 45.512 thousand fish?

Solve the problem.A recipe calls for 8 ounces of unsweetened chocolate for 12 brownies. How much of unsweetened chocolate is needed to make 30 brownies?