SHOW YOUR WORK 20 Point

2126 divided by 4758
pls help

Find the solution of this system of equation -7x+y=-20 9x-3y=36

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.