Identify the number as real, complex, pure imaginary, or nonreal complex. (more than one of these descriptions may apply.) negative 1 a)non real complex b)real c) pure imaginary d)complex

Since the number sets follow this pattern of inclusions:

and , we can deduce that -1 is also a real number and a complex number (since if an element belongs to a set, it also belongs to all the supersets of its set).

So, the correct options are B and D.

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.