The soccer team is planning to sell health bars for a fundraiser. The prices of purchasing health bars from two different companies are represented by the system of equations shown, where x is the number of bars purchased and y is the total cost in dollars. Company A: y=0.75x
Company B: y=10+0.50x

How many bars would the team need to purchase from each company in order for the total cost to be equal?

6
8
30
40

table 3 represents a direct variation function. : )

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.