Find the values of a and b that make the second expression equivalent to the first expression. Assume that x > 0 and y ≥ 0.

Which is the scale factor proportion for the enlargement shown?

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?