Answer:
1 1/2 hours OR 90 minutes
Step-by-step explanation:
In order to find this, divide 12 by 8, which equals 1.5. In hours, this is 1 hour and 30 minutes. Or, 90 minutes. Hope this helps!
17/100
x=28
-7(3+6x)=9(-5x+7)
-21-42x=-45x+63
-21-42x-(-45x)=63
-21-42x+45x=63
-21+3x=63
3x=63-(-21)
3x=63+21
3x=84
x=84/3
3^5 is the same as 3*3*3*3*3. which is 243