Which out of the following are expressions with numbers only?
(v) 5×4-45+p
In the above 5×4-45+p as there is one variable is present that is p.
Hence the above expression does not have only numbers.
Which of the following pair of sets are equal sets?
X=0,1,2,3
Y=Wholenumberlessthan4
(a) y + 3 (b) (7 × 20) − 8z
(c) 5 (21 − 7) + 7 × 2 (d) 5
(e) 3x (f) 5 − 5n
(g) (7 × 20) − (5 × 10) − 45 + p