How would you go about this problem me. mrs santaniello wants to buy lawn feed. sold in 2 sizes. packet size 2kg = £13.00 5kg = £28.50 35 grams is needed per sq metre. lawn is 208 square metres. she wants to apply it just once. what packet sizes should she buy to get the cheapest price? explain answer.

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

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.