1. 20 slices
2. 54 for herself
Hope this helps
161/4=40.25 so none of those choices match
Answer:
The amplitude is 
Step-by-step explanation:
Trigonometric function:
A trigonometric function has the following format:
or 
In which the amplitude is A and the period is 
Amplitude of y = 1/2 * cos 5x
The multiplier is 1/2, so this is the amplitude.
Divide miles driven by time and compare them.
Deena: 585 /9 = 65 miles per hour
Kristen: 605 /11 = 55 miles per hour
Deena drove at a faster rate because 65 is greater than 55.
So on the high lvl of interuitsion according to my 23/49 - rounded ofc