If a cookie recipie cals for 4, 1/4 cups if flour and you cut the ricipie in half ,how much flour would you nuse

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

See attachment below and find the equivalent of tan(∠qsr)

Aphrase is shown read the phrase and give me the answer