y=5/2x-4
Step-by-step explanation:
im pretty sure
Answer:

And on this case we can use the product rule for a derivate given by:

Where
and
And replacing we have this:

Step-by-step explanation:
We assume that the function of interest is:

And on this case we can use the product rule for a derivate given by:

Where
and
And replacing we have this:

10% of 30 is 3, which means it rained 3 days.
30-3 = 27 days NO rain
X stands for the score of her first test
Y stands for the score of her second test