Question

plz answer in explanation ​

Answer 1

Answer:

I explained all

Step-by-step explanation:

1. x^2+x-72 =x^2+9x-8x-72 = x(x+9)-8(x+9) =(x+9) (x-8) the answer is option one
2. 3^2m-2 =6561 ,3^2m-2 =3^8 ,2m-2 = 8 ,2m=10 , therefore m=5 the answer is option 4
3. I can't understand
4. 154/42 =11/x ,154x =462 , therefore x=3 the answer is option 2
5. by multiplying we get , 0.09/0.003 =30 the answer is option 3
6. sorry I can't answer this