The table shows the time it takes jenny to swim laps. how long will it take her to swim 14 laps?

table:
number of laps: 4, 8 , 12, 16
time (min): 3, 6, 9, 12

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Math it's appreciated. (picture provided)

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?