Calculate the mass of a star having a diameter of $4E5km$ and an

average density of $1\mathrm{.}3\frac{g}{c}{m}^3.$

Include at least $3$ significant figures in your answer. $($i$)$

$kg$

If the price of gasoline in Belgium is $1\mathrm{.}74$ per liter and the value

of $1\mathrm{.}00$ is equal to $$1\mathrm{.}48,$ calculate the cost gasoline in dollars

per gallon.

Enter the value with the appropriate number of significant figures. $($i$)$

dollars per gallon