20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50
Answer:
The first should be (x+6, y-(-10).
The others, not sure but you have to plug them in.
Answer:
honestly I have no idea
Step-by-step explanation:
1x-3x=2x
Seven, because 6.7 rounded to the nearest whole number is 7.
