Please help
Simplify 12 + 9 (mod4)

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

Write the equations in logarithmic form 7^3=343

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?