It’s (d) because if one solution to a quadratic function g is the solution given then the other solution must be it’s complex conjugate which is d.
2.5 belongs woth numbers under 10 and decimals
Each tank goes for
How many times he'll have to stop will be related to
He started with a full tank so that means he'll have to fill up twice, once after 264 miles, once after twice that, 528 miles.