How many yearbooks should your school order? Your student government surveyed three homeroom classes, and 55 of 90 students said that they would
definitely buy a yearbook. If your school has 2000 students, a
approximately
how many books should be ordered? Show and organize your work.

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.