What is the original price if the sales price is 40 dollars and the percent of discount is 25%?

In what organelle does photosynthesis take place?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )