Astudent scored an 83 and a 91 on her first two quizzes. write and solve a compound inequality to find the possible values for a third quiz score that would give her an average 85 and 90.
a. 85≤83+91+n/3≤90; 87≤n≤96
b. 85≤83+91/2≤n; -2≤n≤3
c. 90≤83+91+n/3≤85; 96≤n≤81
d. none of the above
/ this symbol means that they are shown on top of each other as a fraction i just couldn't recopy that on here

Find the length of cu, the triangles are similar.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!