I just need proper work shown. The answer is below.

1. $4,470

Meyer Company uses the high-low method to analyze cost behavior, and have determined that machine hours best predict the company's utilities cost. Cost and machine hour usage for the first six months of the year are below: Month Total Utilities Cost Machine Hours January $3,450 1,020 February $3,720 1,110 March $3,467 1,010 April $3,730 1,270 May $4,900 1,320 June $4,232 1,460 What are total utility costs in July if there are 1,600 machine hours