Answer:
a
Step-by-step explanation:
the line model shows 2 halfs of 4/10
The amount that you get from rocking chairs is $100 × r which is $100r
and the amount that you gt from bar stools is $40×b which is $40b
The total amount will be the added amount of 100r + 40 b
so answer is 100r+40b
877 2543 because 4a and 298.is not a
Answer: C. 625 and 81
Step-by-step explanation: A relatively prime pair is a pair in which in both numbers given, the only number that can go into each number is one. In 112 and 36, we know 2 can evenly go into each number because they both end in a positive number (112/2 is 56 and 36/2 is 18.) This means A is incorrect. As for B, 11 can evenly go into each number, leaving you with 25 and 7. B is incorrect. And then there's D. 5 can go into each number giving you 160 and 19. D is incorrect.
C is correct because the only numbers that can go evenly into 81 is 1, 3, 9, 27, and 81. None of these numbers, except one can go into 625 also.
If you can make the denominators the same so 2 can become 10 by mulitiplying by 5 and 1x5 is 5 so 5/10 is less than 7/10
