How can I check my answer to this problem 2x + 2x + 2c + 6 and (2x + c + 3) (2) using values for the variables

Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)

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)

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a