Is ham costs 650 per kg what will 500g cost

In a school 2/3 of the students study a language of those who study a language 2/5 study french

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

Vertical angles must check all that apply