X (2x + 5,000) is invested by Ritika in a scheme offering compound interest at 25% p. a., compounded anmally for 2 years gives an interest of (7x + 7,800). Find the value of 'x'.

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

i believe the answer is c.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.