a student is involved in a read-a-thon fundraising event. she got people to donate a certain amount for each book she read. three people pledged $0.50 per book. five people pledged $1.00 per book. eight people pledged $0.75 per book. she wants to raise $75 for charity. write and solve an equation to find out how many books she will need to read to meet her goal.

difference where there's no picture?

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?