Let the cost of renting a chair be x and for renting a table be y than 5x + 3y = 31 and 2x + 6y = 52 2x+ 6y = 52 can be further simplified to x + 3y = 26 now try solving for x and y... best of luck:D
The altitude of the triangle intercepts perpendicularly meaning that the angle EHG equals to 90 degrees so.... 12x + 30 = 90 subtract 30 from both sides 12x = 60 divide both sides by 12 x = 5
