Katherine earned $15 an hour, divide $105 by the seven hours she worked
You would times 20 and 15 to get 300 and then divide 300 by 25 to get 12
Hi!! What do you need help with? Solving the problems? Or understanding them? Also 1-9 is a bit blurry, so if you could retake it and repost it, I could solve for them. :). But if you don’t want to, don’t worry.
Answer:
A. 
Step-by-step explanation:
The third order polynomial is factored herein:


Which represents answer A.
Since the dimensions of the length and width are equal, then the board and the picture are squares. The width of the board is the margin surrounding the picture. Let's denote the width to be x. The length of the picture plus the length of the width at both ends should equal the length of the board. So, the equation should be:
10 1/2 in = 8 3/4 + 2x
Solving for x
x = 7/8 inches