Answer:
rectangle, square
Step-by-step explanation:
A rectangle always has 4 congruent angles. A square is a rectangle, so a square always has 4 congruent angles.
A parallelogram and a rhombus may or may not have 4 congruent angles.
Answer: rectangle, square
Answer:
x = 0
Step-by-step explanation:
Answer:
2.4
Step-by-step explanation:
We have to find the mean first

Now we have to find deviations.
Note that the deviations are calculated by subtracting the mean from the value. The distance is always positive so the deviations will be positive
Value Deviation
2 2-4.5 = |-2.5| = 2.5
4 4-4.5 = |-0.5| = 0.5
7 7-4.5 = 2.5
2 2-4.5 = |-2.5| = 2.5
3 3-4.5 = |-1.5| = 1.5
7 7-4.5 = 2.5
9 9-4.5 = 4.5
3 3-4.5 = |-1.5| = 1.5
1 1-4.5 = |-3.5| = 3.5
7 7-4.5 = 2.5
The last step is to find the mean of deviations.

The mean absolute deviation of given data set is 2.4 ..
The question is saying that if you buy 5 lbs, you have to pay $2.49. That means that 1 lb is $2.49/5 which (rounded to the nearest cent) is $0.50
96 in total since 3 times 12 equals 36. Then you have 4 times 12 which equals 48. Also you have 2 times 6 equals 12. THEN you add it together to get 96.