What is the sum of the terms of the series 4+7+10+...+22

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Which expression is rational? 6. , square root two, square root 14, square root 49

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)