18+12*4=18+48=66 ft
1st floor is 18ft
next 4 are 12ft
Answer:576
Step-by-step explanation:
Answer:
a2 - 3ab + b2
Step-by-step explanation:
just saying the 2s are squared :)
Ask every fifth person that exits the school
(systematic random)
Answer:
x = 15
Step-by-step explanation:
The two angles form a straight line so they add to 180 degrees
3+6x + 5x+12 = 180
Combine like terms
11x+15 = 180
Subtract 15 from each side
11x+15-15 =180-15
11x = 165
Divide by 11
11x/11 =165/11
x =15
