Pls help! ☆☆10 points☆☆ I'm really confused it is NOT a multiple choice question

The set of complex numbers is the set of all numbers of the form a I bi, where a and b are real numbers. In a * bi, a is called the real part and b is called the imaginary part. Two complex numbers a * bi and c f di are equal if and only if their real parts are equal (a : c) and their imaginary parts are equal (b : d).In a * bi, a is called the real part and b is called the imaginary part. Two

complex numbers a * bi and c f di are equal if and only if their real parts are

equal (a : c) and their imaginary parts are equal (b : d).If b : 0, then a * bi is

a real number.If b * 0, then a * bi is an imaginary number.

The form a * bi is the standard form of a complex numbeg but for convenience we use a few variations of that form. If either the real or imaginary part of a

complex number is 0, then that part is omitted

Step-by-step explanation:If a * bi and c * di are complex numbers, we define their sum, difference,

and product as follows.

(a + bi) + (c + di) : (a.| c) * (b + Ai

(a + bi) * (c + di): (a - c) + (b * d)i

(a + bi)(c + di) : (ac - bd) + (bc + afii

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200