Answer:
In the corner, so the dog has all the room of the triangular yard to roam and play.
X - the number of pencils
y - the number of pens
She has twice as many pencils as she has pens.
Tom borrows a pen, so she has y-1 pens. Now she has ten less pens than pencils.
Set 2y and y+9 equal to each other:
She has 9 pens.
2: c
Step-by-step explanation:
3: a
by Supplementing each answer Into the equation