When the sum of 7 and three times a positive number is subtracted from the square of the number, 0 results. find the number?

(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

What’s 8y+48 and factor each expression completely

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid