Which of the following is not inequalities?

A. p _< 5
B. m > 16
C. 3y = 15
D. k < 9

C

Step-by-step explanation:

An inequality uses >, >=, < or <=.

On the other hand, C has =, which means it's an equality

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

5.5

step-by-step explanation: