What table show a proportional relationship between X and Y? if the picture doesn't show up here are the answer choices

A x 2 4 5 6
y 6 12 18 21

B x 1 3 4 5
y 50 150 200 250

C x 3 5 7 8
y 1.5 2.5 3 4.5

D x 1 2 3 6
y 1.5 3 6 9

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

the answer is 21%.

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: