if $100 in one year earns 3 1/2 dollars in interest, what amount will earn $38.50 in one year and a quarter? This is so confusing to me and if you don't mind plz put your work

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

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?