Does the following set of polynomials form a basis of p_4? (justify) {2, 2 - 3t^2, 2 - 3t^2 - 5t^3, 2 - 4t^2 - 5t^4, 2 - 4t^3 - 5t^4}

The elmina wilson company produces spaghetti sauce that is used in restaurants. the fixed costs total $1,329,050. the selling price per 64 oz. can of sauce is $12.40. the variable cost per can is $4.80. what is the break-even point in number of cans?