The area formula for a parallelogram is base*height=area. Make an equation. You know the area and the height, so plug that into the equation, and you get x*18=396. Solve for x by dividing 396 by 18 and you get 22. So, the base is 22cm.
Answer:
D
Step-by-step explanation:
You are always able to do better, and Fiona needs to reflect
The answer is 3x+15
You multiply the x and 5 by 3 to get 3x and 15
The answer would be B because I did this equation on a sheet of paper and I did the parentheses first which led me to my final answer B.
