Hello!
Let's solve this with a proportion.

We multiply 2.5 by 12 to find x.
2.5(12)=30
The worm can travel
30 meters in 12 minutes.
I hope this helps!
Destribute then combined like terms?
2x10^-10
1x10^-10
8x10^-11
7x10^-11
<< Add

to the left and right of the equation, multiple and make ''opposite multiplation'' to find x.
A)


25x.(-32)= (-16).5
-800x= -80
**to leave x alone and positive, you must divide to -800.


= INCORRECT
B)





C)



10x=1

D)


40x= 4
x=

= 1/10
I think there is a problem with the options :D