4a * 7c (-2 + -4)= -168ac.
(<u>100 m / 10.4 sec</u>) x (3600 sec/hr) x (mile/1609.344m) = <em>21.5</em> miles per hour
Rounded to the nearest whole number, that's<em> 22 mph</em> .
I think its A, If I'm wrong let me know.
Answer: for 2x2-x-6 it is -5.75 but make sure with other people
Step-by-step explanation: