Graded assignment unit test, part 2: problem solving with rational numbers answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 10 points (score for question 1: of 6 points) 1. use your mental math to find the answer. 1a) what is 10% of 40? 1b) what is 20% of 40? 1c) what is 25% of 40? 1d) what is 30% of 40? 1e) what is 40% of 40? 1f) what is 50% of 40? (score for question 2: of 4 points) 2. you buy a pair of pants. the original cost of the pants is $30.00. the pants are on sale for 20% off. 2a) what is the amount of the discount? (hint: 20% of $30.00) 2b) what is sale price of the pants?