Ans A particle is moving along a line. Its displacement (in meters) after t minutes is:
s(t) = 40
ela
Find the average velocity over the interval [4, 5].
Write your answer as an integer, fraction, or decimal rounded to the nearest tenth. Simplify
any fractions.

47 - 90 = 43

43 - 180 = x

x = 137

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true