64  is  4  times the difference between sarah's age,  a, and  4. assume sarah is older than 4.write an equation to determine sarah's age  (a) left parenthesis, a, right parenthesis. find sarah's age.

If 3x+8=3x+8 is it one solution or no solution

Which expression converts 45 degree to radians

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)