The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years. Which equation represents the cost of the high-efficiency washing machine over a given number of years?

Which equation represents the cost of the standard washing machine over a given number of years?

After how many years of use would the washing machines cost the same amount?

Which washing machine would be the more practical purchase if kept for 9 years?

Which equation represents the cost of the high-efficiency washing machine over a given number of years?  

Which equation represents the cost of the standard washing machine over a given number of years?  

After how many years of use would the washing machines cost the same amount?  

Which washing machine would be the more practical purchase if kept for 9 years?  

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870