3) Which two ratios form a proportion?
A)
4
and
2
B)
IN
4
and
1 8
8
and
D)
IN
16
and
8

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?