0.04(30h) is the part. Because 0.04 represents 4%, we know that it should be the tax rate. 30h represents the cost for every hour, so we know that that's not the correct answer.
TV price less sale price:
$168.90 - (0.15 × $168.90) = $143.565
Total TV price with sales tax:
$143.565 + (0.05 × $143.565) = $150.74
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When the same two digits are next to each other, such as 2.2 you know the relationship is that the 2 in the ones place is exactly 10 x that of the 2 in the tenths place. The same relationship applies that the 2 in the tenths place is exactly 1/10 that of the 2 in the tens place. So the number to the left of the other would be a multiple of that number; the number on the right of the other would be a division of the that number.
Answer:
see below
Step-by-step explanation:
cos(420°) = cos 60 = 1/2
sin(450°) = sin 90 = 1
