A stone is dropped vertically downwards from the top of a tower of height 45m with a speed of 20m/s. find the; (a) time it takes to reach the ground.
(b) speed with which it hits the ground.
( take g=10m/s)

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

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.

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift