Determine whether the function is growth or decay AND its percentage of growth or decay.

1. y= .3(4)^x

Growth , 300%

Step-by-step explanation:

4 > 1

so Growth

(4 - 1) × 100 = 300%

growth, 300%

Step-by-step explanation:

y=.3(.4)^x

The equation is of the form

y =a b^x

b tells us growth or decay

b>1 growth

b<1 decay

This is growth

To find the percent growth take b-1

4-1 = 3

Change this to percent

300%

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

i need points

step-by-step explanation: