The sum of a 2-digit number and the 2-diget number formed by shifting the 2 digits is a square number. list all the 2 digit numbers that have such property

Find the nonpermissible replacement for binthis expression.b2/5b +5

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?