At age 24 someone sats up an IRA (individual retirement account) with an APR of 7%. At the end of each month he deposits $60 in the account. How much will the IRA contain when he retires at age 65? Compare that amount to the total deposits made
After retirement the IRA will contains
(Do not round until the final answer. Then round to the nearest cont as needed)

Ineed with number 6 , explain how to get 1978

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.