What is the percent increase when 7,200 increases by 1,800? A. 20 percent

B. 25 percent

C. 54 percent

D. 80 percent

B.

Step-by-step explanation:

The percent increase when 7200 increases by 1800 is 25 %

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9