La longitud del lado de un cuadrado si su área es 81 pulgadas cuadradas

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.?

Add the fractions and simplify 1/2+ 1/3

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base