1. LCM of 15x^7 and 45x^7
2. Marla can shovel the driveway in 60min and Bill can do it in 45min how long would it take them to do the job together?
3. Divide and simplify:
x^2-4/x divided by x+2/x+8
4. add and simplify:
5/49z^3 + 1/35z^2
5. simplify by removing factors of 1
y^2-5y+6/y^2+3y-18
6. divide and simplify:
h+1/h-3 divided by 6h+6/h-1(simplify answer)
7. add and simplify:
5/v-9 + 5/v+9
The perimeter of a square: P = 4s.
The equation:
4s = 12x + 52 |:4
s = 3x + 13
Let's think that The NUMBER is x so it would be 2x+13=27 so this goes to 2x=27-13 which is 2x=14 so x equal to 7
2p = 396/63 (= 6.2857)
p = 198/63 (= 3.14)
