Answer:
254.47
Step-by-step explanation:

solve for "k" to find "k", or the "constant of variation"
You’re not giving 30 points, you’re only giving 5
Answer:
x = 5/e
Step-by-step explanation:
ln x- ln 5= -1
We know that ln a - ln b = ln (a/b)
ln x- ln 5= -1
ln(x/5) = -1
Raise each side to the power of e
e^ ln(x/5) = e^-1
We know that e^-1 = 1/e
x/5 = 1/e
Multiply each side by 5
x/5 *5 = 1/e * 5
x = 5/e
Answer:
His friend lives 7.29 miles away
Step-by-step explanation:
All you have to do is times 0.27 by 27 and you get 7.29