Answer:
1st Question is: 80%
2nd Question is: Option 'D'
Step-by-step explanation:
Both make a matter of 80%, the first one is because 4/5 in radical form is 80/100, The second answer is because 462 + 378 = 840, 840 simplified with 1,050 makes 4/5 = 80/100 or 80%
