Arelationship is linear if it has a(n) (negative, positive, constant, or undefined) rate of change.

first one is (constant)

second answer is (slope)

the third answer is 2

Step-by-step explanation:

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

inch

step-by-step explanation:

yard and mile are too big.