This is simply testing if proportions are valid.
Guess-and-check, so the answer would be 40:48, since 5 x 8 = 40 and 6 x 8 = 48, where 8 is the set "constant" number
The answer is D.
First calculate the gum price and add the tax since it is the only item that is taxed.
Gum 1.10*1.04= 1.14
Gas 9.25*3.15=29.14
Wiper fluid = 4.97
Add = 35.25
Paid cash $30.00
Remainder $5.25
In the triangle, the remaining angle has measure 
. Then by the intersecting secants theorem,
(assuming 102º refers to the measure of arc PK)
36.98 cm, because 4.3cm x 8.6cm = 36.98
20*K < 3
⇒ K < 3/20
The final answer is K < 3/20~
