9+6a
a=7
what is the answer to this expression?

225/100 of last years cost. write each fraction as a decimal and as a percent

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?