Last year there were k pies baked in the bake sale. this year, there were 187 pies baked. using k, write an expression of the total numbers of pies baked in the twin years.

Which one ? is the answer and how to find this answer

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g