Answer:
17/80
Step-by-step explanation:
change 21 1/4 to a fraction
2125/10000 and simplfy
425/2000
85/400
17/80
-9 to the second power will most likely be 81. A negative x a negative equals a positive. Hope this helped.
I use a website called desmos.com when I need to graph a function. Heres a picture of what it should look like.
45.36km/hr.............. ...........
4.03-2.75=1.28
1.28 divided by 0.08 is 16
He made 16 color copies.