A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain
130 gallons of a mixture that contains 70% pure antifreeze, how many gallons of each brand of antifreeze must be used?

This trip the family will spend $117.96. the next trip they will spend $119.27. this is an increaseof $117.96 - $119.27| or an increase of $1.31.what is the percent of increase? round your answer to the nearest whole percent. type your answer into the space. the percent of increase is: resetsubmit