Answer:
Step-by-step explanation:
Scientific form of 0.0000007 = 7 × 
It is already in simplest form
8.4 x 10^12 / 4.2 x 10^6 = 2 x 10^6
<span>Your answer is -0.5 hope it helps:)
Also, I changed my pfp so know it's not team 10 no more</span>
So k in the first problem would =1/2
and i guess in the second problem just put k in place of the first space and in the second space put 8 for x. y would then =4. Idk if I did this right, though, I'm honestly a little confused too.
