Answer:

Step-by-step explanation:
-The total portion fed to the dog is 7/10 cup
- Canned-3/10
- Dry=7/10-3/10=4/10
-One week has 7 days. we multiply the dry portion per day by the number of days in a week.

Hence, Erin feed her dog 2 4/5 0r 2.8 cups of dry food
1x 1 inch cube has volume 1in³, so 180 of these cubes can fit in a 180in³ space.
Answer:
x=6
b= 126
Step-by-step explanation:
8x+78 = 2x+114
8x-2x = 114-78
6x=36
x=6
--------
b=2x6+114
b= 126
Answer:
x^2 + 2x + 1
Step-by-step explanation:
1. collect the like terms.
2. use the commutative property to reorder the terms.
3 because a polygon has 3 or more sides