Question 1160517
650/1000 is the current situation
You are 50 points below a C now
On the final, if you get a 90, you are getting 90 points for every 100 awarded or .9x for every x awarded.
so your percentage will be 650+.9x/1000+x, and that equals 7/10
so 6500+9x=7000+7x
2x=500
x=250 points on the final, and you need 90% of them or 225
your score will be 875/1250=0.7