Not sure how to do this. would be appreciated! ! show work so i can better understand.

You are responsible for designing a new city. you are inspired by pierre charles l'enfant, who laid out the streets of our nation's capital. numbered streets run north and south, and lettered streets run east and west. avenues are named after states, and they intersect the streets on a diagonal. the streets are parallel and the intersections form similar triangles. 18th st. is 454 meters long and the intersection of 18th and k st. is 207 meters from connecticut ave. if 19th st. and k st. is 385 meters from connecticut ave., what is the length of 19th st.?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?