PLEASE HELP Sydney bought 5 new notebooks for $ 1.42 each and 15 pens that cost 3 for $1.20. How much change would Sydney get back if she gave the cashier a $20 bill?

Which number produces a rationale number when multiplied by 1/5

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?