How to solve this problem - 0.3 + r equals 4.7

Round 11 5/6 to nearest whole or half

A baker uses 1.5 tsp of vanilla extract in each cake. how much vanilla extract in liters should the baker order to make 800 cakes? (1 tsp = 5 ml)

What is the standard deviation of the following data set rounded to the nearest tenth 60,40,35,45,39

What is $184.94 if the shipping 5%

Write five decimals that have at least 3 didgets to the right of the decimal write write write the expanded form and word form for each number

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.