HoldMyBeer

the period is 3.14 (the distance from one peak to the next)

the amplitude would be 2 as it is the distance between the centre point and peak

the frequency is 1/3.14 

the equation of the midline of the function would be x=-3

ignore if blatantly wrong  haha

s to d on calculator

Ok- so the information given is that we have to take a 7 block path, no cutting across blocks.

we would have to take 4 steps to the right and 3 up in any order

therefore 

\( (7/3) {7X6X5 \over 3X2X1}= 35\)

=4.8x10^18

edit: is that a root sign there?

523598775.6x10^-6

luckily, you are already given the formula in this question

simply plug in the numbers

4xπx8^2

then /2

=402.1 1dp

i'm sorry 

i'm torn between B and C

A as it is a number greater than 1 to the power of x

I would think D