The answer is C because -2 is less than or equal to 5. (4 times 0 is 0)
I think this is how you solve this and the answer <span><span><span>0.1+30</span>+8</span>−12</span>+<span>14</span><span>=<span>26.35
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51% less.
The length is decreased by 50%, which is the same as being multiplied by 0.5, then it's increased by 40% which is another multiplication by 1.4. So the overall change is 0.5 * 1.4 = 0.7, or the newest rectangle is 70% of the size of the original rectangle. And since the area increases by the square, the newest rectangle has 0.7 * 0.7 = 0.49 of the area as the original rectangle. So it has 51% less area than the original rectangle.
Mathew would get $15 (60%) and luke would get $10 (40%)