How many of ppl on drainly are single ( don’t answer if ur going to be petty)

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Can someone explain to me how to do