321x.07 (7%) = 22.47
$22.47 tax was collected, add that to 321 to find the total. :)
80 is correct each of the triangles are 2x2/2 therefore 1 triangle is 2 multiples by 4 so all triangles equal to 8 units. The rectangles are 6 by 2 so 6 multipled by 2 multiplied by 2 again because there are 2 rectangles is 24. 8+24=32. Middle section is 8x6 and that equals to 48. 48+32 is 80 therefore the area of this figure is 80 units
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1) Mean 2) Standard deviation 3) symmetric
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30= 20 so, that’s 10 dollars of
1o+ 7. 5=17. 5+10=27 .50
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I took the test hope this helps
