Answer:
the actual distance is 1800 ft.
Step-by-step explanation:
Proportion states that the two fractions or ratios are equal.
Let x be the actual distance.
As per the statement:
Reggie was looking at a map of the school the scale shows that 1 inch equals 150 ft.
⇒1 inch = 150 ft.
if the distance between his classroom in the cafeteria measures 12 in on the map.
by definition of proportions we have;

By cross multiply we have;
ft
Therefore, the actual distance is 1800 ft.
20) Answer is: x=76
21) Answer is x=15
Answer:

Step-by-step explanation:
Answer:
2047
Step-by-step explanation:
We are given that
Growing rate=0.7%



Using the formula



Initially when t=0,P=323 million
Substitute the values


Now, substitute P=400 million





Year=2016+31=2047
Hence,In 2047 the U.S population will reach 400 million people.