help me pls A stunt plane ended a maneuver 900 feet above the top of a skyscraper after starting 400 feet above the top of that same skyscraper. What integer represents the stunt plane's change in altitude? 1 point +500 feet -500 feet

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

lol 2

step-by-step explanation: