Hi,
Equation:

Multiplying two negatives equals a positive.

Now equation looks like:

Hope this helps.
r3t40
The ratio of the rectangle's length to its width is 42/14 which simplifies to 3/1 by factoring out 14 out of the numerator and denominator.
Any ratio that is not 3:1, or a multiple of 3:1, is not equal.
List of Equal Ratios: 6:2, 9:3, 12:4, etc.
66/128 * 100
51.56 % if rounding to the nearest hundredth.
51.6 % if rounding to the nearest tenth.
52 % if rounding to the nearest whole number.
Answer:
$146.58
Step-by-step explanation:
Price of 1 notebook: $3.49
Price of 40 notebooks: 40 * $3.49 = $139.60
Sales tax is 5% of $139.60: 5% * $139.60 = 0.05 * $139.60 = $6.98
Price of 40 notebooks plus sales tax: $139.60 + $6.98 = $146.58
Answer: $146.58