Answer :
To do it without a calculator:
10% of 67 is 6.7
6.7 x 8 is 53.6 (80%)
1% of 67 is .67
53.6 - .67 is 52.93 (79%)
10% of 67 is 6.7
6.7 x 8 is 53.6 (80%)
1% of 67 is .67
53.6 - .67 is 52.93 (79%)
52.93 to find 9% you divide 67 by 100 = 0.67 and times by 9 = 6.03 then to find 70% you divide by 10= 6.7 and times by 7 = 46.9 and lastly you you add 6.03 + 46.9 tada
