To find a percent from a decimal, you multiply the decimal by 100. So, the answer would be A.
Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves.
total number of student in the data set in the dataset is 90
N =9/8
n = 1 1/8
Hope this helpsb☺
