the size, length, or amount of something by measuring
a unit or system of measuring
First thing to note is that we are on week 0, when they start saving:
The equation for Alex is:
y=20x + 125
Know that we are on week 0, and x is our weeks, that makes our equation:
y=20(0) + 125
Which means it's really:
y=125
That means that the first one is E. 125
For the second, it shows our week 0, which is at 100.
That means that the second one is I. 100
Hope this helps!
Answer:
e. Object X has traveled four times as far as object Y.
Explanation:
The distance covered by an object in uniform accelerated motion is given by:

where
u is the initial velocity
t is the time
a is the acceleration
The two objects in the problem have same initial velocity, u = 0 (since they start from rest), so we can rewrite the equation as

We see that the distance covered is proportional to the square of the time. In this problem, the two objects X and Y have same acceleration, but object X accelerates for twice the time: since
, this means that the distance covered by X will be
times higher that the distance covered by object Y.