Can someone help solve

Combined megan and kelly worked 60 hours.kelly worked twice as many hours as megan.how many hours did they each worked?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

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)