For which inequality would x = 8 not be a solution? 4x + 3 > 0 9x - 5 < 100 x + 4 ≤ 10 72 ÷ x ≥ 4

Based on what i know about mean, this doesn't add up.

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.