7 1/5 - 6 2/5 = ?

A 13 3/5
B 1 1/5
C 1 4/5
D 4/5

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

Which table shows a proportional relationship between miles traveled and gas used?