4. Using various puzzle pieces, Marco forms the figure below. What is the best estimate of the area of the figure?
16 in
OF
146in
OG
88 in?
ОН.
57in2
O.
123in2

➙ Total distance = Distance covered by (walk + Bus)

➙ 3/4 = x + 1/2

➙ 3/4 – 1/2 = x { 1/2 transported to LHS }

➙ 3 – 2/4 = x { LCM of 4 & 2 is 4 }

➙ 1/4 = x

Hence, Ali walked 1/4 km before taking bus.

★ Check ★

➮ Total distance = Distance covered by (walk + Bus)

➮ 3/4 = 1/4 + 1/2

➮ 3/4 = 1 + 2/4 { LCM of 4 & 2 is 4 }

➮ 3/4 km = 3/4 km

LHS = RHS

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: