What is the determinant of the coefficient matrix of the system

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The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab