Answer:interest =p×r×t ÷100
Time = 21/2 -5/2
Interest = 7150×5×5/100×2
answer =1787.5
Amount = P-I
7150-17875/10
Answer = 5362.5
Step-by-step explanation:
Answer:
I think it’s d
Step-by-step explanation:
Answer:
r = 8
Step-by-step explanation:
The circumference of a circle is given by :
...(1)
We need to find the value of r when C = 16π
Solving equation (1)

So, the value of r is 8. Hence, the correct option is (b).
Answer:
Exact form: 
Decimal form: 0.72
Step-by-step explanation:
Reduce the expression, if possible by cancelling the common factors.
The first one would reduce the size because it would now be 4/5 of the actual size
The scale factor 7/2 would enlarge it because it is getting 3 1/2 time larger than the oringanl size