Question

(a) Evaluate (-12) = 12
1
(b) Represent rational number on the number line.
(c) If 21% of a certain number x is 84. find x.
(d) Find (i) x36 (i) x 42
(e) Find the value of
4
3
QUESTION​

Answer 1

Answer:

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Answer 2

Answer:

$(a) \: \: | - 12| = 12$

$(b) \: \: 21percent \: of \: x = 84$

$= \frac{21}{100}x = 84$

$\frac{1}{100}x = 4$

$x = 400$