Can power absorbed be negative and power supplied be positive?

Question

I've been working on these end chapter problems from my book and noticed that something is either wrong and contradicting to the concept I was taught, or there is some concept I missed entirely.

Here are the figures for the two problems below:

Notice that for problem 1.21 it says that element A is "absorbing" power and problem 1.22 that it is "supplying" power.

When I do the calculations based on the following rule, Current leaving the "+" side and power > 0, then power is "supplied" otherwise if power < 0 then power is "absorbed"

So 3 A leaves 15 V from the + end and the power, P = VI, is 45 W, 45 > 0 and thus power should be "supplied" but the problem says it is being Amabsorbed.

Again with problem 1.22 but this time, it is entering + so the rule states, current entering the "+" end and power > 0, then power is "absorbed" otherwise if power < 0 then power is "supplied"

So 2 A enters 20 V from the + end and the power is 40 W, 40 > 0 thus power should be "absorbed", but the problem says it is being supplied.

Now back to main question, is it that I am wrong, and through some concept I missed, that problem 1.21 is actually -45 V absorbed and not -45 V supplied, and the same with problem 1.22?

Answer 1

I'm am sorry for wasting time on this post. I was able to get in contact with my professor on a Sunday after all and upon checking the solution, he said the polarities on both problem's elements are incorrect and are in fact a MISPRINT. It should be for 1.21, + to - in the direction of the current and - to + for 1.22's current direction.

Thank you all that answered.