1。For every positive even integers n , the function h(n) is defined to be the product of all even integers from 2 to n inclusive .I f p is the smallest prime factor of h(100)+1, then p is greater than 40.(请教思路）

2。A student worked for 20 days .For each of the amounts shown in the first row of the table , the second row gives the number of days that the students earned that amount.What is the median amount of money that the student earned per day for the 20 days .

Amount earned per day : $96 $84 $80 $70 $48

Number of days : 4 7 4 3 2（请教思路）