Given: -7x < -21. choose the solution set. a. {x | x < -3} b. {x | x > -3} c. {x | x < 3} d. {x | x > 3}

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.