Please help! the questions r in the image

the first one r equals to 13.5 for the other one p equals 4/9

Step-by-step explanation:

for the first one you add 7.2 and 6.3 you get 13.5 to check your answer subtract 13.5 and 7.2 u get 6.3

both equations and proportions are better.

go on the tube you might find some information there