Answer:
Step-by-step explanation:

There would be 81 in grade 5
and 68 in grade 6
because 10% of 90 is 9 so 90 - 9 =81
and 15% of 80 is 12 so 80 - 12 = 68
Answer:
7.5
Step-by-step explanation:
12/8 = 1.5; 12/2 =6; 6 + 1.5 = 7.5
Convert 14,563.98 to words gives us fourteen thousand five hundred sixty-three and ninety-eight hundredths.