Answer:
42. B
43. A/B
44. D
45. D
Step-by-step explanation:
42.
- "product of" means multiplication
- "thrice a number n" is 3n
- "and eight" means 8
- "product of thrice a number n and eight" is 8(3n)
43.
- "three more than" means + 3
- "a number y" means y
-"three more than a number y" is 'y + 3' or vice versa. (to avoid confusion) 'D' is not the answer because the phrase should've used the word "is".
44.
- "a cube of a number x" is x³
- "increased by 10" means + 10
- "a cube of a number x increased by 10" is x³ + 10
45.
- "difference between" means Subtraction
- "four times a number m" means 4m
- "and seven" means 7
- "the difference of four times a number m and seven" means 4m - 7
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