Answer:
its porpotional
Step-by-step explanation:
hope this helps
Answer:
90
Step-by-step explanation:
To find s4 we find sum of values when n=1,n=2,n=3,n=4
given expression is 
n=1 , plug in 1 for n

n=2

n=3

n=4

Sum of all 4 terms = 6+12+24+48=90
(22 + 15.50 + 2.75) 15
(22 * 15) + (15.50 * 15) + (2.75 * 15)
Step-by-step explanation:
Robbie=
15%/100%=220
=33 movies
Rebecca=
10%/100%=220
11 movies
Robbie have 33 movies and Joshua have 11 movies
Thank you
Hope it helps.