Answer:
I get z = +1.8
x= 79
m= 73;s= 4;z= (x-m)/s= 1.5
hope it helps you
Answer:
The unit rate of 297 words for 5.5 minutes is, 54 words per minutes
hope this helps :-)
243 because if you divide and subtract it would culminate to the amount of people
Bob charges $140
Andy charges $135
Andy is cheaper