James wants to have earned $5,607 amount of interest in 26 years. Currently he finds that his annual interest rate is 6.89%. Calculate how much money James needs to invest as his principal in order to achieve this goal.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

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