Brendan has a cherry tree in his yard. Currently the tree is 9 feet tall. That is 50% taller than it was when Brendan planted it. How tall was the tree then?

What is the solution to the equation 9^(x+1) =27

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?