Instant help guys please, I need this in about ten minutes. please help I'll give brainiest to correct answer

3*9^1+X=27^-x. find x

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00