And airplanes at altitude change -378 ft over 7 minutes what was the mean change of altitude in feet per minute?

-54 ft/min

Step-by-step explanation:

Find this rate of change as follows:  (change in altitude) / (time).

Here, that would be -378 ft  /  7 min = -54 ft/min

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

idk

step-by-step explanation: