Goran invested in a savings bond for 6 years and was paid simple interest at an annual rate of 7%. The total interest that he earned was $840. How much did he invest?
If necessary, refer to the list of financial formulas.

This is different from the first one can someone me

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.