Tyler's mom purchased a savings bond for Tyler. The value of the savings bond increases by 7% each year. One year after it was purchased, the value of the savings bond was $171.20. Write an equation that you could use to represent this situation.

Find the value of the bond when Tyler's mom purchased it.

Which is the graph of the function y=2(4)^x

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

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling