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if \frac{a}{b} > 0, then a > 0 and b > 0

true or false? if false include a counterexample.

hlp #savetheturtles

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.