That is how it hydrates our skin
Well, I actually did the entire calculations until I figured out that its very simple, and I didn't need to!
If she has already saved 6%, then to find how much she still needs to save, we subtract 100% from 6%.
So Nina still has to save 94% of the total cost to get the bike.
Solution
The counselor has 12 electives courses (e.g. art, band, PE, etc.) to choose from and must select 2 ordered classes for each 6th grade student.
Let S be the sample space.
Then, n(S) = 12C2 = (12 x 11) ÷ (2 x 1 ) = 132 ÷ 2 = 66
Sixty six (66) ways can the counselor arrange the last 2 periods of the day for the 6th grade students
20% * 300 = 2 * (10% * 300) = 2*30 = 60
All angles in a triangle add up to 180°
So add the other two angles
90+35=125
Subtract the sum from 180
180-125=55
Angle b is 55°