Is -9w+6=-8w no solution

At the school fair, grade 3 raises 84 more then grade 4. grade 4 raises 112 more then grade 2. grade 3 raises 360. how many dollars does grade.2 have

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate