Scientific notation is basically a short cut to write numbers with a lot of zeros in them. The difference between 3^8 and 3*10^8 is that the first is 3 multiplied by itself 8 times, and the second is 3 being mulitplied by 10^8. I hope this helps.
Answer:
- 55
Step-by-step explanation:
I read (-99/3^2)*5
(-99/9)*5
(-11)*5 = - 55
Move variable to right -
-3Y=9-5x
Divide both sides by -3 -
y=-3+5 over 3 x 5/3 x(not right besides the 3 it is on the end)
Answer:

Step-by-step explanation:
Slope-intercept formula: 
Find slope of (−1, −7) and (1, -13)





Hope this helps!