Answer:
5 units
Step-by-step explanation:
Even if there is a transformation, it is asking for the length.
Therefore the length of WZ is 5 units
No the product will be less than 9/10.
This can be easily seen if the fractions are converted into decimals.
The decimal form of the product of 7/8 and 9/10 is 0.867 while the decimal form of 9/10 is 0.9. Therefore, the product of 7/8 and 9/10 is not greater than 9/10
The answer is 8x-1 I believe
Erica would have sold 121 subscriptions in 3 days.