Awelder earns $20 an hour for the first 40 hours she works in a week and $30 for every hour over 40 hours. determine a piece wise function f(x) that can be used to determine the welder's earnings when she works for x hours in a week

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

Can you me find the missing length. i attached an image.

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up