B. 1 = 12
i + (-3) is really just i - 3
i - 3 = 9
add 3 to both sides since the opposite of -3 is +3
you’re left with i = 12
The number 1 can be classified as: a natural number, a whole number, a perfect square, a perfect cube, an integer. This is only possible because 1 is a RATIONAL number
linear equation :x + y = 4500
gallons of regular gas = 3500
gallons of premium gas = 1000