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(10 point giveaway)

What is julen 3/4÷1 and 1/8 in simplest form

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?