The area of each square below is 1 square unit. What is the area of the striped region?
of a square unit

Tell whether the two rates form a proportion

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?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4