For the numbers a and b represented in the figure, which expression is equal to |a+b| ? A: a+b
B: a-b
C: b-a

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?