suppose that sale and bonus are double variables. write an if...else statement that assigns a value to bonus as follows: if sale is greater than $20,000, the value assigned to bonus is 0.10, that is 10%; if sale is greater than $10,000 and less than or equal to $20,000, the value assigned to bonus is 0.05, that is 5%; otherwise the value assigned to bonus is 0, that is 0%. (3)