8(-2.5-7) simplify expression by applying the distributive property

What is the range? can’t seem to find it out

Which system of linear inequalities is represented by the graph?

Will mark the brainliest. paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?