Which two ratios represent quantities that are proportional?
A.) 22/33 and 14/21
B.) 48/60 and 35/42
C.) 25/28 and 5/7
D.) 16/13 and 13/16

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)

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.