If U = {all positive integers}

1, 2, 3, and etc

Step-by-step explanation: They are 3 type or integers, +, - and 0+ is the set of all positive integers 1, 2, 3 and etc, while - is the set of all negative integers -1, -2, -3, etc. Zero has its own set.

Whether her conversion is correct or not, you can just base it on the true answer. For this problem, we apply the technique of dimensional analysis. You can like units if they both appear in the numerator and the denominator side. The solution is as follows:

Mass in ounces = 3 kg * (1,000 g/ 1 kg) * (1 ounce/28.35 g) = 105.82 ounces