Answer:
Step-by-step explanation:
Step one:
given data
initial charge = $170 per hour
new charge= $136 per hour.
Required
% decrease
Step two:
% decrease = initial- new /inital charge
% decrease = 170-136 /170*100
% decrease = 34 /170*100
% decrease = 0.2*100
% decrease = 20%
x>3
Between 1 and 3 seconds
There is no change in distance ( change in y ) between 1 and 3, so she wasn't walking during that time
D
The formula for C is
C=2πr (using 3.14 as pi)
so C=2(3.14)(45)
so C=90(3.14)
so C≈282.6 or D
cgnnjfcjifchhgsiwjcjcbanxjdhw