Answer:
False.
Step-by-step explanation:
This is because if n is also a negative number like (-2), the answer would be:
-(-2) = +2
Two minuses, one <u>inside a bracket</u> and one <u>outside it</u>, make a plus when the bracket is removed.
Amount earned in one hour : 6.25
Amount needed to earn : 400
So, number of hours required for earning the required amount :
= Needed amount/Amount earned in an hour
= 400/6.25 = 64
2.25
100% = 1
50%= 0.5 (just an example)
225% = 2.25
Answer:
B) 12 cm²
Step-by-step explanation:
find area of shaded region, which is 4x4, or 16 cm² then subtract out the area of the unshaded region, which is 2x2, or 4 cm²; you get 12 cm²