PlEASE I REALLY NEED HELP PLEASE I BEG OF YOU PLEASE!

When a formula is solved for a particular variable, several different equivalent forms may be possible. if we solved a=1/2bh for h, one possible correct answer is h=2a/b . which one of the following is not equivalent to this? a. h= 2(a/b) b. h= 2a(1/b) c. h= a/1/2b d. h= 1/2a/b

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°