90^6=531441000000
80^-4= 1/80^4= 1/4960000
For this, use negative power rule x^-a= 1/x^a
If by markup you mean discount then.....
1.5*0.07 = $0.105
That must be a very good pen ;D
Answer:
On a coordinate plane, a graph titled Total Pages Jacqueline Has Read has days on the x-axis and Pages on the y-axis. A line goes through points (1, 25) and (2, 50).
Step-by-step explanation: