Use proportions to solve the following problem. A sample of library books has taken. 27 out of 100 books taken out where
non-fiction. If there are 1500 books in the library, how many are non-fiction

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Y= a(x-3)squared-1 what is the value of a