Can someone plz help me on algebra 1 A lesson 2 semester exam unit 8?

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

Explain why the following problem is an irrational answe

Which values of m and b will create a system of equations with no solution? y=mx+b y=-2x+3/2