When I was 2 years old, my sister was half of my age. Now Im 80 years old, how old is my sister?

What is the complement of 109° degrees? A. 81° B. 71° C. 109° D. 90°

5 male friends are of different ages, go by different nicknames, drive different cars, have different jobs, and root for different pro football teams.Using the clues below, can you determine the age, vehicle, job, and favorite pro football team of the man nicknamed Tubba?

1. The man who drives a station wagon roots for the Raiders.
2. The man who drives a Hummer is 42.
3. The man who roots for the Bengals is a flea trainer.
4. The man who roots for the Cowboys has a 2-year age difference with the competitive eater.
5. The man who dives an SUV is a toothpick tester.
6. The man who dives an RV has a 2-year age difference with the 40-year old man.
7. The man who roots for the Browns is nicknamed Dubba.
8. The oldest man is 4 years older than the apple dewormer.
9. The 38-year old man roots for the Steelers.
10. The man whose age is in the middle is an apple dewormer.
11.The man nicknamed Rubba has a 2-year age difference with the man who roots for the Steelers.
12. The man who drives an RV is the youngest.
13. The 44-year old man is a beer-bottle capper.
14. The man who roots for the Cowboys has a 2-year age difference with the man nicknamed Hubba.
15. The man who drives a pickup is nicknamed Bubba.

Help with question 9 please

T Object]Which of the following is a true statement about the Marshall Plan?
A. It was designed to aid poor people in the United States.
B. It was implemented in 1954.
C. It was named after Truman's Secretary of State.
D. It gave Europe exactly $100 million dollars in aid.

Rewrite the fraction in simplest form.
63/70

Which of the following piecewise functions is graphed above?