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nalin [4]
3 years ago
12

Simplify this expression 1/3(21m 27) a. 7m 27 b. 7m 9 c. 63m 9 d. 7m 81

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
4 0
1/3(21m + 27) = 7m + 9
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Answer:

D is the best answer to the question

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The original price of a pair of shoes is $42. The sale price 20% off the orginal price. Sales tax of 7% is added to the sale pri
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Step-by-step explanation:

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Find the slope of the line passing through the points A(6, –5) and B(–5, –7).
inna [77]

Answer:

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2 years ago
Evaluate (18)^2-(15)^2<br> Please show working.
dexar [7]

Answer:

99

Step-by-step explanation:

You can solve it by Squaring/multiply 18 by itself and 15 by itself then subtract them both:

(18 × 18) - (15 × 15)

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You could also do difference of two squares:

(x² - y²)

= (x + y) (x - y)

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8 0
3 years ago
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