Answer: 42
Step-by-step explanation:


Check the picture below
bear in mind that, the angle is in degrees, thus, when getting the sine, make sure your calculator is in Degree mode
Hello,
18/72 and 4/16 are proportional. They each have a constant ratio of 0.25.
Faith xoxo
28+22+29+ 21 (your answer) = 100 divided by 4 (the amount of numbers used) = 25 (average)