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Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

If a || b and e || f , what if the value of y ?