Hope this helps with the answer to your question:) (sorry I didn't know how to do question 30)
Answer:
5
Step-by-step explanation:
1. in order to calculate all the required values, it needed to solve:

2. x≥5 means, that x∈[5;+∞), where beginnig is '5'.
<span><span>the answer is 10<span>x^7</span></span><span>y<span>^2</span></span></span>
Answer: 19.1842
Step-by-step explanation: