- What is (9x + 5)-(4x + 3) I got 5×-2? is that correct distribution?

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In about of fraternal twin pairs, one twin is a boy and another is a girl? Half of them are fantasy, 1/4 of them are biographies, 1/8 of them are mysteries, and 6 of them are sports books. How many books total? Recent survey of 150 households, 54 had central air Find p and q, where p is the
proportion of households with central air conditioning.? If you are 57.5 grams of HCl and NaOH in excess, calculate the theoretical yield of NaCl in grams? What is the next number in this sequence? 1,1,2,4,5,25?