Two girls each opened their own lemonade stand. They paid the same amount, c, for each lemon, but they collected different amounts of money from customers. The expressions in the
table can be used to calculate the profit each girl made. The girls made the same amount of
profit.
Girl 1
80.25-87c
Girl 2
73.35 - 640
What is C, the amount paid for each lemon?
A $0.30
B $1.02
C $0.45
D $6.68

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

How do you solve a question like this?

Need now 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.