The library sells 376 books at its annual used-book sale. the sale takes in a total of $2119. children's books cost $4 each, and adult books cost $7 each. let x = number of children's books sold, and let y = the number of adult books sold. write a system of equations to model this situation.

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second