5/4 in to a decimal

Find constants a and b such that the function y = a sin (x) + b cos (x) satisfies the differential equation y'' + y' - 7y = sin (x).

A human body that is performing light work generates about 400 btus of the body heat per hour while active. if an office that is 20 ft x 30ft x 10ft has 8 workers, how many btus per cubic foot do they produce in 3 hours (to the nearest tenth) A) 0.

Jamie wants to treat some friends to lunch. He has $40 and knows that lunch will cost about $7 per person, p. How many people can Jamie buy lunch for?

A rope is 440 cm long is it in kilometers

Fred has saved 3700 cents over 8 days from selling lemonade. How much dollars does Fred have

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.