Simplify the expression 5+6i/4+6i
a) 56-6i/-20
b) -16-6i/-20
c)56-6i/52
d) -16-6i/52

Option (C) is correct .

Step-by-step explanation:

As the expression given in the question as follows.

Now rationalize the expression.

Using the formula

a² - b² = (a - b) (a + b)

Using in the above

As i² = -1

Option (C) is correct .

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

3

step-by-step explanation: