Question

Melinda and Marcus are saving money to purchase a present for a friend. Each friend starts with an amount and also saves a specific amount each week.



Melinda created a table to show the total she has saved at the end of each week.
Weeks 0 5 10 15 20 25 30 35 40
Amount saved 75 135 195 255 315 375 435 495 555



Marcus came up with the following equation to show the total, y, he has saved at the end of each week, x.

y = 14x + 25



Compare the rate at which each friend saves money.


The rate at which Melinda is adding to her savings each week is $
less than the rate at which Marcus is adding to his savings each week.

Answer 1

Let's find the rates at which Melinda and Marcus are saving money and compare them. 
Based on the table, we can see that Melinda originally had $75. Then she got $135 in 5 weeks.  So the rate of saving money is (135–75)/5 = $12 per week.
This rate is unchanged for the next weeks. As we can see, she got $195 in the next 5 weeks. So she saved $60 more those 5 weeks, or the rate is $60/5 = $12 per week again. 

So Melinda saved $12 per week.
As for Marcus, the equation tells us that the rate of saving money is $14 which is the coefficient in front of x.

Hence, the rate at which Melinda is adding to her savings each week is 2$
less than the rate at which Marcus is adding to his savings each week.

Answer 2

Answer: (PIC)

PLEASE MARK BRAINIEST-

if this helped