The Toronto Zoo used to have 45 goats but now there are only 36 goats. What is the percentage decrease of the number of goats?

Can someone me with my math problem pls my teacher is on my back about this

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?

87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points i've gotten this quarter. what's my final grade?