Use double angle to rewrite 12sinxcosx

Which statement is true about the expression 12 minus 7 + 3?

Tina uses a $50 gift certificate pair of pajamas for $17.97 a necklace for $25.49 and 3 pairs of socks that each cost the same amount Tina has to pay $0.

Which number is between 0.5 and 5/8? A. 1/4 B. 8/28 C. 9/16 D. 19/28

Which is greater cube or triple?

How many miles are in 10,560 yards? 1 mi. = 1,760 yds. 10,560 yds. = ? mi.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.