Please help! I don't understand, so if you can explain, that would be amazing. If you just give me an answer, that's ok too!

3 units

Step-by-step explanation:

-1, 0, 1 ,2

( 1, 2 ,3)

b. x- 48 =120

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