Benchmark #1: Research potential DIY (do-it-yourself) musical instruments and identify 3-4 that you are interested in building for the project. Write about what materials you would need to buy, the difficulty level of the construction, how well you expect it to work, etc. (1-2 paragraphs is all...just to show a small portion of your thoughts and concerns) Include pictures/screenshots of the 3-4 potential different musical instruments that you might be able to build. (you do not need to draw a detailed sketch as the rubric states...you can just include the internet pictures)

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me