There are 30 children in year 6. if 70% of the class got level 4 how many children got level 4

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)