The situation that is best modeled by a discrete graph is -
the daily records of the distance or each hotel from home during a cross country trip,
the height of a wave over time,
the speed of a motorcycle over the distance it travels,
the body temperature of an athlete during a workout

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

i think the answer would be c

60: 45 =12: 9 =4: 3 so the answer is 4: 3