How many different combinations are possible? picture below

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex