Answer:
18y(2)-9y-2
Step-by-step explanation:
18y(2)-12y+3y-2
18y(2)-9y-2
Calculate the numbers that do have 7 in it.
1 to 10 :1
70 to 79:10
1 to 100:1×9+10=19
700 to 799:100
1 to 999:8×19+100=252
intergers with no 7=999-252=747
Answer:
Option 3) 
Step-by-step explanation:
In the given question we have to calculate the quotient after division.
To solve this question we will factorize (t²+7t+12) first and then we will will divide by this.
⇒ t²+7t+12 = ( t²+4t+3t+12)
⇒ t(t+4)+3(t+4)
⇒ (t+3)(t+4)
Now its a simpler form of divisor to get the answer.
We come back to the question


Or 

So the right answer is 
2(2x +2y) and <span>√(4x + 4y)^2</span>