The product of 14 and a number minus 2 equals to 40

What is the prime factorization of 23 ?me with this question

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?