Ablueprint for a house has a scale of 1: 10. a wall in the blueprint is 8in. what is the length of the actual wall? a) 6.67 inches b) 80 feet c) 960 feet d) 6.67 feet

Me because some of question i don’t understand

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer