Simplify expression show step by step (-2i)(8i)

Three coins are flipped. what is the probability that there will be at least two tails?

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!

Find the area of the triangle shown 3 by 6