Answer:
$18.90 + $6.30 = $25.20
Step-by-step explanation:
Answer:
Rs 38,640
Step-by-step explanation:
<u>Pay attention:</u>

The principle (p) : Rs 42,000
Rate of interest (r) : 8%
Time (n) : 1 years
Exact Amount (a) : P(1-R/100)^n
Value:
A = 42,000(1 - 8/100)^1
A = 42,000(1 - 2/25)
A = (42,000 * 23)/25
A = 1,680 * 23
A = Rs 38,640
A 45° sector is 1/8 of the area of the circle, so is (72π m^2)/8 = 9π m^2.