The square root of 255+266 is 241. I can't help you with shortcuts as I'm bad at explaining, but I'm sure there are websites that can help you.
Answer:
500
Step-by-step explanation:
40%=190+10
40%=200
10%=50
100%=500
Answer:
The amount is $418.35 and the interest is $98.35
Step-by-step explanation: