Which of the following is an example of a linear inequality? * a. 2x - 4 = 6

b. 7x > 3

c. 2x^2 + 3 = 4x

d. x^3 + x^2 - 3 = 0

It would be B because that is the only answer that contains a inequality symbol.

Step-by-step explanation:

Option A is a Linear Pair

Step-by-step explanation:

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable x is 1.

(a) 350

(b) 175

(c) 21

(d) 196

Step-by-step explanation:

Number of females = 7

Number of males = 5

Total ways of selecting r items from n items is

(a)

Total ways of selecting 3 females and 2 males.

(b)

Total ways of selecting 4 females and 1 male.

(c)

Total ways of selecting 5 females.

(d)

Total ways of selecting at least 4 females.

Total ways = 4 females + 5 females