22x0.0525 = 1.155
22 x 0.15 = 3.3 (tip)
22 + tax + tip = 26.46 (unless the tax is actually 11.55)
The answer is 7. You need to use BIDMAS - Brackets Indices Division Multiplication Addition Subtraction
2x + 6 = 4x/2 + 12/2
To solve this, we need to transpose like terms to the same side.
2x - 4x/2 = 12/2 - 6
2x - 2x = 6 - 6
0 = 0
Since both sides are zero, it means that the equation has infinite number of solutions.
The decimal you put would be “two ten-millionths” if read out loud. If the allowable amount is 10 parts per billion, it would be 1 part per 100 million. Because 2 parts per 10 million is also 20 parts per 100 million, it is not not an acceptable amount