.Subtract the following: (a) ,4, 7 0,0, (b) -3,.9,4,7

Subtract - 7 from (-4)/7

Evaluate the following {:[(4),(7)] [(7, 9)] + [(4,0),(0,-5)] .

Which of the following is not zero? (a) 0xx0 (b) 0/3 (c) (7-7)/3 (d) 9+0

How many 7'immediately preceded by 6 but not immediately followed by 4 are there in the following series? 7 4 2 7 6 4 3 6 7 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3

Find the median of the following data:7,9,4,11,4,6,8,3,4,9,4,7,2,7,2

Subtract 5 ab - 7 a - 4b from 9 ab - 8a + 5b