Can someone help with only the ones i circled?

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?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition