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Under the standard SQL recovery protocols, what does a transaction’s COMMIT statement explicitly signal to the Database Management System (DBMS)?

Convert 420 cubic inches to cubic centimeters.  Round to two decimal places if necessary

Determine the probability of having 2 girls and 1 boy in a 3-child family assuming boys and girls are equally likely.

At age 23, you set up an account with an APR of 2.5%.  At the end of each month, you deposit $200 into the account.  How much will the account contain when you retire 42 years later at age 65?