C is the correct answer choice
It was multiply (z - 12) by 2 because you have to multiply everything in the parentheses
Product means multiply, so the product of 12 and 8 would be written as 12 x 8
Then you want 6 less than that so you need to subtract 6
The equation should look like (12 x 8) - 6
A prime number is a number which is only divisible by one and itself, no other number can be used to divide it without having a remainder.
From the set of number given above, the one that is not a prime number is 1057, this is because, 7 can be used to divide it without any number remaining.
1057/7 = 151.
