Afarmer needs to drive from his farm into town to pick up supplies. he usually drives 29 miles on a straight stretch of highway, but because of road construction, he must take a detour. the detour consists of driving 21 miles, turning at a right angle at an intersection, and then driving some more as shown. how many miles does the detour add to the farmer’s commute into town? a) 8 miles b) 10.5 miles c) 12 miles d) 15.7 miles

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Me with these questions , i don’t understand scientific notation!

Mason bought 8 1/4 feet of wire. he cut off a piece of wire 3 5/12 feet long and used it for his science project. how much wire did mason have left?