Which expression is equivalent to 4/9 × 7 key:
1. 9÷4×7
2. 4×7÷9
3. 4÷7×9
4. 7×9÷4

Thank you :)​

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?