Salaries and wages expense are $3,000 and interest revenue is $100.
Expense refers to a cost that occurs while making any activity in the business operations. To calculate the profit earned these expenses are deducted from the income.
Salaries and wages expense=10*3*$100
Salaries and wages expense=$3,000
Interest revenue = $1,200/12=$100
Learn more about expenses, here:
https://brainly.com/question/17136150
#SPJ1