Help help help help help

Which number line represents the solution set for the inequality -1/2x> 24?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27