Challenge 1:
the sum of two numbers is 20, and the difference between their squares is 40. find the numbers.
challenge 2:
what is the number?
it is greater than 15 squared. it is not a multiple of 3 or 5, but a multiple of 4. it is less than 20
squared. it is not a multiple of 17. it is a square number.

b

2

−

b

b

3

+

7

b

2

+

14

b

+

6

%

−

3

b

3

+

7

b

2

+

14

b

+

6

%

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

answer: i realy don't get it that much can you me figer it out pleas you

step-by-step explanation: