Five pounds of rice at a store cost $6.50.use the ray tool to graph the cost, c, vs pounds of rice, p, at this store. how do i plot this on a graph?

for every 5 pounds the price increses by 6.50

 so points (5,6.50) (10,13) 15,19.50) etc.

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

Let

c--------> the cost in dollars

p-------> the pounds of rice

the unit rate in this problem is equal to the slope of the linear equation

Find the unit rate

the equation of the direct variation is equal to

using a graphing tool

see the attached figure

the answer in the attached figure

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

it would open into a square depending on the type of envelope i’m not sure about the second part