Which equation shows the result of substituting y from the first equation into the second equation for the given system? y=x+5; y-2x=2 a.(5-x)-2x=2 b.(x+5)-2x=2 c.(x+5+2x=2 d.(x+5)-2x=0

If 20% of a number is 35, what is 50% of that number?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?