Proper because improper would be 6 over 5 and mixes would be 1 and 1 over 6
1.) B
because it says the person buys a ski for 350. He puts down $110 which means to subtract. Now he got a discount which also means to subtract. Then it told that he gave 1/2 them money to his mother. So that too means to subtract.
2.) 2+5n
because it says 2 plus 5 times a number. So 2+5×n
7 will never equal 8 so there is no solution. so i think it is C
