Simplify the expression. Write the answer using scientific notation. (9*10^7) (7*10^9)

Total principal in both accounts

What are the solutions to the equation? 5x^3 = 405x

Jeremy finished 3 puzzles in 168 minutes. The second puzzle took twice as long as the first one and the third pizzle took twice as long as the seond one. How long did the third puzzle take?

8w^2=50 i'm not sure how to find the answer

Write 24.357 in the Expanded form using fractions

4 - (x+2) <-3 (x+4) A. X<-7 B. X>-7 C. X<-9 D. X>-9

Sue's bank account has a balance of $899.83 before she starts spending money. She makes the following transactions: Transaction Cost ($) Rent 353.76 Video game 32.79 Bike maintenance 60.26 Jacket 55.62 Rug 80.40 Night out 35.

A student's course grade is based on one midterm that counts as 20 % of his final grade, one class project that counts as 5 % of his final grade, a set of homework assignments that counts as 35 % of his final grade, and a final exam that counts as

Solve 4-|2x-1| = - 3

Stacy decided that she would start doing sit - ups every day. Her plan each day was to do twice as many sit - ups as she had done the day before. If Stacy did four sit - ups on day one, how many total sit - ups had she done after one week