What would be a reasonable estimate for a height of a skyscraper

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?