Data concerning Veronica Company's activity for the first six months of the year appear below: Do not enter dollar signs or commas in the input boxes. a$)$ Using the high$-$low method, calculate the variable components of the electrical costs. Round your answer to $5$ decimal places. Variable Cost per Unit: b$)$ Using the high$-$low method, calculate the variable components of the electrical costs, Round your answer to the nearest whole number:c$)$ Calculate the total costs be if $5,890$ hours were used. Round your answer to $2$ decimal places.