Answer:
40/41
Step-by-step explanation:
tanB=opposite length/adjacent length
tanB=40/41
$20 a week for 10 weeks is:
20*10 = $200
She spends $6.75 each day for 5 days:
6.75*5 = $33.75.
Lets subtract her spending from her savings to find out how much she has left:
$200-$33.75 = $166.25
2*pi*r = 56.52 ........................................
r = 56.52/2pi ...........................................
r = 56.52/6.28 ........................................
r = 9..............