Question

Please answer the above questions, thank you​

Answer 1

Step-by-step explanation:

I have shown step by step explanation for the questions in the pic attached.

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Answer 2

cp of bulb = 200 × 10 = 2000

bulb after thrown = 200 - 5 = 195

sp of ball = 195×12 = 2340

so it is gain

gain = 2340 - 2000 = 340

gain% = 340/ 2000 × 100 = 17 % gain answer