8.7 x 10^7
2.3 X 10^4

this equation is in scientific notation and is being divided.
answers available:
a. 3.8 X 10^3
b. 6.4 X 10^5

1. convert. simplify your answer and write it as a proper fraction or as a whole or as a mixed number. 4oz=_ pounds 2. find 1/3 of 66

Beth took out a $20,000 loan for college she is borrowing money from two banks. bank a charges an interest rate of 8.5% bank b charges and interest rate of 10.5% after one year alice owes $1860 in interest how much money did she borrow from bank a

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer