Principal = 5 3 0 0 =5300equals, 5300 rupees annual rate of interest = 6 . 5 % =6.5%equals, 6, point, 5, percent total amount = 6 6 7 8 =6678equals, 6678 rupees period = =equals years

The formula is

A=p (1+r)^t

A future value 6678

P present value 5300

R interest rate 0.065

T time?

6678=5300 (1+0.065)^t

6678/5300=(1+0.065)^t

Take the log for both sides

Log (6678/5300)=t×log (1+0.065)

Divide both sides by log (1+0.065)

T=(log(6,678÷5,300)÷log(1+0.065))

T=3.7 years

Hope it helps!

x = ± 2

Step-by-step explanation:

Given

16 - 2x² = - 64 ( subtract 16 from both sides )

- 2x² = - 80 ( divide both sides by - 2 )

x² = 40 ( take the square root of both sides )

x = ± = ± = ± 2