An online retailer is selling used books for $6.49, and you have $50 to spend. how many books can you buy if you must pay 6.5% sales tax and an additional 10% of the total purchase price (with tax) for shipping? [] book(s)?

Ihave trouble finding the nth term of a linear sequence

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)