Answer:
A. Translate the following verbal phrase into mathematical phrase.
1. three times b minus four
Answer: 3b-4
2. a number c increased by six
\tt{ \green{ arrow \: \underline{c + 6}}}arrow
c+6
3. twelve decreased by a number m
\tt{ \green{ arrow \: \underline{12 - m}}}arrow
12−m
4. four times a number x decreased by two
\tt{ \green{ arrow \: \underline{4x - 2}}}arrow
4x−2
5. the sum of a number. n and seven multiplied by two
\tt{ \green{ arrow \: \underline{(n + 7)2}}}arrow
(n+7)2
6. eight times a number x increased by two
\tt{ \green{ arrow \: \underline{8x + 2}}}arrow
8x+2
7. the quotient of n and 4
\tt{ \green{ arrow \: \underline{n \div 4}}}arrow
n÷4
8. twenty multiplied by the sum of x and y
\tt{ \green{ arrow \: \underline{20(x + y)}}}arrow
20(x+y)
9. ten times a number r increased by fifteen
\tt{ \green{ arrow \: \underline{10r + 15}}}arrow
10r+15
10. thirty added to the quotient of a number y and five
\tt{ \green{ arrow \: \underline{30 + y \div 5}}}arrow
30+y÷5
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