What postulate or theorem can be used to prove that lmn = pmn

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Based on the figures as marked, /\rqs = —

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2