麻烦回答一下几道英文数学题.

麻烦回答一下几道英文数学题.
1、if the product of two positive integers is a prime number what must be the value of the smaller integer?
high tide
2、a mark M,on a cliff is 1.96m below sea level at high tide .at low tide the sea level is 4.18m lower than at high tide.
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| 1.96m
M *
|
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low tide
at a certain time the sea level is exactly half way between high tide and low tide .how far is the sea level below M at this time?
3、the number 168 and 324,written as the products of thier prime factors ,are
168=2^3 * 3 * 7 324=2^3 * 3^4
the smallest positive integer value of n for which 168n is a multiple of 324?
4、it is required ti find a rational number which is equal to the recurring decimal number 0.73737373……
hence express 0.737373……in the form a/b where a and b are integers?
5、find,in its simplest form,the fraction which is exactly halfway between 13/17 and 14/17?
6、each of the 50 seats at the front of a cinema sells for half the price of one of the remaining seats .there are 200seats altogether and when every seat is sold the takings are $525.
find the price of a seat at the front of the cinema.
7、an athlete walks a distance of 1 km at an average speed of 6 km/h and then,without stopping,runs further distance of 800 meters in 2minutes.
his average speed for the whole journey in km/h.
问题可能有点多,但是应该都不是太难.第二题的图是自己打上去的,辛苦大家了.记得写一下汉语翻译哈.