In a computer game, players complete levels by arranging captured objects in a triangular pattern. The triangle for level n has a bottom row with n objects, and each successive row
above has one less object until the top row, which has one object. The
function (n) = 0.5n^2 + 0.5n gives the total number of objects required to complete a level.
t
where n is the level number.
3. A player started at level 3 and ended at level 7. What is the average rate of change
between these levels ? Explain what your answer means in context.

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

answer is 33

step-by-step explanation:

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b