Which expression could be substituted for x in the second equation to find the value of y? x − 2y= −10

2x – 3y= –1

Ineed with this. the figure is made up of a square and a rectangle. find the area of the shaded region.

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point