Answer:
a. 170
b. 2,400
c. 6,000
Explanation:
You need to make the multiplications that are indicated in each option:
Option a: you only need to multiply the first factor (17) by the digit that is not zero (1) of the second factor (10), and then write all the zeros that has the second factor:
![17*10=170](https://img.qammunity.org/2020/formulas/mathematics/middle-school/eh46aasf41dm11xo6lkxp231gdttzi0c1b.png)
Option b: you need to multiply the first factor (24) by the digit that is not zero (1) of the second factor (100), and then write all the zeros that has the second factor:
![24*100=2,400](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jhus5iskyqzx78zk8xbocuhoh0306lo0r4.png)
Option c: you have to multiply the the first factor (6) by digit that is not zero (1) of the second factor (1000), and then write all the zeros that has the second factor:
![6*1,000=6,000](https://img.qammunity.org/2020/formulas/mathematics/middle-school/uho9rjl4ciegzrip28wxk6ali26fq044wg.png)