The value<span> of </span>y<span> has changed at a </span>much<span> greater rate. </span>If<span> the x-axis represents time and the </span>y<span>-axis distance, as is the case in </span>many<span> applications, then the rate of </span>change<span> of </span>y<span> with respect to x -- of distance with respect to time -- is called speed or velocity.</span>
Recall d = rt, distance = rate * time.
now, he has a speed rate of 56 mph for a distance of 504

so, at that speed the whole driving time is 9 hours then. Ok, he drove 2 hours today, that means he drove 7 yesterday, 9 - 2.
how many miles is it for 7 hours at 56mph? d = rt ---> d = 56 * 7
that many miles he drove yesterday.
3/5 = 51/85
Therefore, 51 red marbles and 85 green marbles follows the required ratio.
I can’t see the image it’s very blurry
I believe (a+b)^5 would be the answer