4. Kevin made contributions to a Roth IRA over the course of 40 working years. His contributions averaged $3,000 annually. Kevin was in the 25% tax bracket during his working years. The average annual rate of return on the account was 7%. Upon retirement, Kevin stopped working and making Roth IRA contributions. Instead, he started living on withdrawals from the
retirement account. At this point, Kevin dropped into the 15% tax bracket. Factoring in taxes, what is the effective value of Kevin's Roth IRA at retirement? Assume annual compounding. (3
points)
O $449,179.01
O $568,905.34
O $580,905.34
0 5586,905.34

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.