(7+4i)+0=7+4i.
Hope it helps
Answer:
Step-by-step explanation:
The question is not terrifically worded. What it means is "What is the y value when x = 8" That's what f(8) conveys to you.
The answer (though zero is not marked and should be) is 1 unit above 0.
The answer is f(8) = 1 He's heading back.
Answer:

Step-by-step explanation:
Let x = number of pairs of shorts.
1 pair of shorts costs $2 * 1.
2 pairs of shorts cost $2 * 2.
x pairs of shorts cost $2 * x or simply 2x.
The cost of the shorts must be at most $24, so 2x must be equal to or less than 24.

Answer:
It's on the negative side, so make sure you put -2.25. But yes, it's right.