Is the following an example of simple random, cluster, systematic or convenience sampling?
group the students in a local college by year and then randomly select 15 students from each group.

the image of (6, 9) under a dilation is (4, 6). the scale factor is

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*