42,099 rounded to the nearest 1,000

Ineed asap.i cant understand this question i need someone to me right away

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Use the distributive law to multiply. 3(4x + 5y + 6)