For this case we have:
Let x be the variable that belongs to the real numbers. Then, all reals less than 70 can be expressed as:
![x <70](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1w5td4xywk3zcwkdnuyh8hzbw905g8oxnw.png)
The tip of the inequality is directed to the real numbers, since they tell us that they are less than 70, for 70 the inequality remains open.
Answer:
![x <70](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1w5td4xywk3zcwkdnuyh8hzbw905g8oxnw.png)