Please help ASAP! <3 Mr. Janes can write 10 tests in 4 hours. This weekend, he needs to write 25 tests. How long will it take him?
Select all of the proportions below that model this situation. Note, you do not need to solve for x.

A - 10 tests/4 hours = 25 tests/x hours
B - 10 tests25 tests = 4 hoursx hours
C - 10 tests/x hours = 25 tests/4 hours

What is the approximate circumference of the circle shown below?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?