Tasha bought some bracelets that cost $5 each and 2 hats that cost $12 each. The cost of her total purchase was $39

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Find the solution(s) to x^2-14+49=0

Y+ 2/y is it a polynomial in one variable or not? and if so, why?