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Explanation:
Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction. The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series
A ratio which estimates the risk associated with investing in a business firm is called: solvency ratio.
Solvency ratio can be defined as a key metric that is typically used to measure the ability of a business firm to meet its long-term debt obligations.
Basically, a solvency ratio measures the financial position of a business firm and the extent to which its assets cover long-term debt obligations (commitments), especially for future payments and the liabilities.
In conclusion, a ratio which estimates the risk associated with investing in a business firm is called solvency ratio.
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the answer is 318 because that is the answer 318
318