What is the product of 2.7 and 18/17? Is the product rational or irrational?

hep the ratio of the weight of shawn's dog to the weight of andy's dog is 5: 7 shawn's cat weight 23kg approimately how much does andy's dog weigh

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?