You know that 3+3+3+3=4*3=12.this shows that 4 groups of 3 equal 12. the expression x +x+x+x+=4x means x is used as an addend 4 times. write an equivalent expression for m+m+m.

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)