Please help i’m at 24% now i need to get to 82%!! i’ll mark and please be serious or i will take my points back.

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

What is the interquartile range (iqr) of the data set represented by this box plot?