Answer:
Step-by-step explanation:
x = the number
x + 1/6x + 2 1/2x + 7 = 12 1/2
3 + (1/6 + 1/2)x = 12 1/2 - 7
3 + (1/6 + 3/6)x = 5 1/2
3 2/3x = 5 1/2
x = (11/2) / (11/3)
x = 11 / 2 * 3 / 11
x = 3/2
x = 1 1/2
the answer is 2,419,200 seconds
If 25% is 45 students, then 100% is 180 students. There are 180 students in the entire 7th grade class.
3.14 x radius x radius
3.14 x 10 x10
=314cm squared
