Answer:
Answers are
1. 99,
2. 78
3. 84
We show workings if less than 100% with 0. in front
so question 1 workings look like this.
180 x 0.55 = 99
Question 2 workings look like this
3.00 x 26 or 26 x 3 = gives us 78 which is 300%
Question 3
0.12 x700 = 84
We know 10% is 70 and 1% is 7 = 7+7+70 = 84. Let me know if this helps.