Answer:
1 is C
2 is B
3 is C
Step-by-step explanation:
Answer:
It would be about $9
Step-by-step explanation:
you would round $10.80 to $11 because it says to estimate and then you do 20-11 which is 9 so the answer is $9
3 x 4x = 12x
3 x -5 = -15 12x - 15 = 45
+15 +15
12x = 60
divide by 12
x = 5
If the area was 16cm^2 before, then each side was 4 cm long since each side of a square is equal, and the area for a square is the length of the sides squared. The square root of 16 is 4, so that is why the sides were 4 cm. When you make each side 1 cm shorter, they're now all 3 cm. 3^2 is 9, so the new area is 9 square centimeters.