With this word problem! i have a test tmrw and i’m so confused!

I gotchu bro.  First you want to expand 5 x 10^-6 which is (HINT: 10... and then move the decimal 6 to the LEFT) so:  0.000010 (you can drop the 0 after the 1)
So then, Take 0.04 and divide 0.00001 to get your answer. 

(U got a test so im not gonna answer it for u. U got this)

4,8,12,16,20,24
4x1=4
4x2=8
4x3=12
4x4=16
4x5=20
4x6=24