Add the numbers up to get the total number of biscuits, which will be 50. Then, make a fraction using the squares, which will be 15/50. Simplify by 5. The answer will be 3/10.
I hope this helped!
145%
200/200: 100%
90/200= 45%
First, combine 20c and 10c because they are like terms then combine 8d and -5d.
It would look like this:
20c+8d+10c-5d
30c+3d
Hope that helps