Wilson bought gift cards for some lawyers and their assistants. each lawyer got a gift card worth $l. each assistant got a gift card worth $a. there are 14 lawyers. each lawyer has 3 assistants. the expression for the total cost of the gift cards is 14l + 42a. write an expression that is equivalent to the given expression. also the way you find the answer

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?