Answer
-10
Step-by-step explanation:
-8w-7=9
add 7 to both sides
-8w=16
divide by negative 8 on both sides
w=-2
w-8=-10
Combine like terms-- you can combine the k's:
![4k-1.5k=2.5k](https://tex.z-dn.net/?f=4k-1.5k%3D2.5k)
Now you have:
![2.5k=50](https://tex.z-dn.net/?f=2.5k%3D50)
Simply divide both sides by 2.5 to find the value of k:
Height is not measured in surface area as that is a 3D look so it is still LW meaning 4 times 1.5 which is 6
Rx = 30...divide both sides by r
x = 30/r <==
Well, there are 60 minute in an hour and 60 seconds in a minute so we can multiply 7 by 60 and then 60 again to find out answer.
7 times 60=420 times 60=25200
she babysat for 25200 seconds