A. The extra amount added to the selling price to arrive at the cost price
The answer would be 11x-12
1. y₁ = 70x
2. y₂ = 55x
Solve y₁ - y₂ for x = 11.
Nate's package is 8 kilograms. This is because, if there are 1,000 grams in 1 kilogram, 8,000/ 1,000= 8 Therefore, the mass of his package is 8 kilograms.
Have a Merry Christmas!
The rule is 3^x.
Check: 3^1 = 3; 3^2 = 9; 3^3 = 27 and 3^4 = 81
