PLEASE HELP ME. PLEASE

find a

-1701(813^3a-4) = 7(729)^a

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?