1. Joy owns a parcel of land that has an area of 1 hectare. If she sells 1/2 hectare to Chan and hectare to Ren, what part of the land was left? The question that the problem wants you to answer is
"What part of Joy's 1-hectare land was left?"

I’m stuck on this i don’t understand.

The la dodgers hit the most homeruns in 2014. the number of homeruns accounted for 6% of the entire major leauge baseball homerun count. if 583 total homeruns were hit, approximately how many did the la dodgers hit

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.