F(x)=x^2+x-2 and g(x)=3x-1 find (f+g)(1)=

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.

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

Will mark brainliest! ( explain the answer too, it can be one sentence)