Atree casts a 26 foot shadow. a boy standing nearby casts a 12 foot shadow, forming similar triangles. his height is 4.5 feet. how tall is the tree?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?