There are 10 blue marbles, 8 pink marbles, and an unknown amount of green marbles. how many marbles are in the bag if there are 30 marbles in total?

Which statement justifies why angle ebc measures 90?

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?

3/4 + p = 1/2? i’m not sure how to solve it