Helen has 3 different coins (20p, 50p and £2). She chooses one, two or three of the coins. Write down all the amounts of money she could make. Note: separate your amounts with a comma and specify the units (eg. 20p, £1.90).

What is the multiplicative rate of change of the exponential function shown on the graph?

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?