one leg of a triangle is decreasing at a rate of 5 kilometers per hour and the other leg of the triangle is increasing at a rate of 14 kilometers per hours. At a certain instant, the decreasing leg is 3 kilometers and the increasing leg is 9 kilometers. what is the rate of change of the area of the right triangle at that instant?

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?