HELP ME A rock garden is in the shape of a triangle as shown. Which equation could be used to find the area of the rock garden?

Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?