In 2019, Zoom had 12.92 million users. In today's day and age, Zoom has approximately 300 million users. What is the percent of change in the number of users from 2019 to today? Round your answer to the nearest percent.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?