The Gateway Arch in St. Louis, Missouri, is 630 ft tall.
We can model the behavior of objects falling from the arch using Galileo's formula for falling objects: d = 16t^2 where d is distance fallen in feet and t is
time in seconds since the object was dropped.
How long would it take an object dropped from the arch to fall to the ground? Give your answer to the nearest second.

The total number of students in gina’s after-school program is .the number of students who have 4 or more siblings is .reset next

Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off benin’s area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?