No Mach
Try to convince me different

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)