X+4x=35-20. 5x=35-20. 5x=15. X=3
1.50n - 50 = p
Explanation: 1.50n = profits from selling cupcakes. Subtract from cost to make cupcakes (50) to find profit.
1. Reflect over x axis, right 1, up 8
2. Ref. over x, stretch 4 (up and down), up 6
3. Stretch 2 (side to side), left 9, down 5
4. stretch 8 ( s to s), reflect over y, down 4
5. Ref. over x, stretch 2/7 (s to s), up 5
Let would be the annual interest rate such that,
I = P x r^t
For the 1st
160.67 = (2000) x r*8/12 ; r = 0.02277
The second case is just the same.
