1) The sum of three to seven less than fifteen written as 3 + 7 30
7) Number one is greater than three (the x is the number one) is written as x. > 3
8), a certain amount is greater than or equal to six (the x is the number one) is written as x ≥ 6
9), three times the number of one plus seven more than nine (the x is the number one) writes a 3x. 7> 9
10), five times the sum of the number one and two less than eight (the x is the number one) is written as 5 (x + 2)