(2) 0. 12: 1 equal 12: 100.

(3) 2.75 million: 2.5 million equals 1 10: 100.

5: Spinach is the highest and eggplant is the lowest.

6. answer: no, because the unit is different. The correct one is: 150: 100. Simplified: 3: 2.

I wonder if your textbook is like this? But begging for adoption