A 2m wide path is made around a square pound of area 6400 m². (a) Find the area of the path.
(b) How many tiles are required to pave on the path by the tile of area 0.40 m²? Find it.
(c) If the cost of a tile is Rs. 7.50, how much total cost will be required to pave the tiles on the path? Find it.

아무도 나를 도울 수 있습니까? Please ​

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.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost