Answer
$2.75617 \times 10^{9}$
and $4.58383 \times 10^{9}$
Work Step by Step
$e=\dfrac{c}{a}$
This implies that $c=3.67 \times 10^{9} \times 0.249$
or, $c=9.1383 \times 10^{8}$
Now,
$= a-e= 3.67 \times 10^{9}-9.1383 \times 10^{8}=2.75617 \times 10^{9}$
and
$= a+e= 3.67 \times 10^{9}+9.1383 \times 10^{8}=4.58383 \times 10^{9}$
