Assuming there is no specific percentages in the grade book, you would need a grade of 95 to get your whole grade to 90. You find this out by working backwards starting with 90 to find average. You take 90 times 2 which equals 180 and you subtract 85 from that to get 95! Brainliest?
The answer to your question would be 10.5
Because 3/2 = 1/2 and 1/2 = 0.5 so nine plus 3/2 would equal 10.5 make sense?
3,727.25 divide 4.25 = 877
249 Zeros in the expansion of 1,000