A shop sells compost in 20 litre bags and in 40 litre bags. One day the shop had two special offers for the compost.
20
litres
40
litres
2 bags for £3.50
3 bags for £9
Which offer is the better value for money?
You must show how you get your answer.

Also how much it costs for each litre?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

What is r i 4.5+10r=-6.5 with work pls