The marginal cost function associated with producing x widgets is given by

C$\text{'}($x$)=0\mathrm{.}4$x $+35$

where C$\text{'}($x$)$ is measured in dollars$/$unit and x denotes the number of widgets. If the daily fixed costs incurred in the production is $$700,$ compute the total cost incurred in producing the first $100$ units of the day.

dollars