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:
<h2><em><u>7d + 4f - 15</u></em></h2>
Explanation:
-3 + 4d - 2f + 3d + 6f - 4 - 8
= −3 + 4d + −2f + 3d + 6f + −4 + −8
= −3 + 4d + −2f + 3d + 6f + −4 + −8
(4d + 3d) + (−2f + 6f) + (−3 + −4 + −8)
7d + 4f + −15
= 7d + 4f - 15
You would have to multiply 120 x 20 then divide by 8. I hope that helps you!
