on 1st jan 2016, sanika decides to save 10( rupees),11(rupees)on second day, 12(rupees) on third day. if she decides to save like this, then on 31st Dec 2016 what would be her total saving??​

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

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.