exam Maths Puzzle Numerical Ability

please help me solve these three problems:


____1____ _____2b____ ____-5______
4b^ - 9 // 2b + 3 // 2b^ -

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exam Other Question

From Student edition of Saxon/math 5/4, Lesson 22,page 94
The first four odd numbers are 1,2,5, and 7. What is their sum?
Find two consecutive integers such that the sum of 8 times the first integer and 6 times the second integer is 48.No book. Thanks so much!