The cost per pound is
... $117.50/(50 pounds) = $2.35/pound
The average cost for a pound of pet food is $2.35.
_____
If the food only comes in 50 lb bags, your cost for one pound of it will be $117.50.
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

so therefore

so we're really looking for the equation of a line whose slope is 2/3 and passes through (-4 , -3)

Answer:
time = 28 years
Step-by-step explanation:
Given,
principal amount = $10,000
rate = 4%
total amount = $30,000
According to compound interest formula

where, A = total amount
P = principal amount
r = rate
t = time in years
so, from the question we can write,



by taking log on both sides, we will get
=> log3 = t.log(1.04)

=> t = 28.01
So, the time taken to get the amount from 10000 to 30000 is 28 years.