The number of gallons, g, in a circular swimming pool varies jointly with the square of the radius, r, and the depth d.
If g = 800 when r = 2 and d = 4, find the radius of the pool if the depth is 1.25 and the pool is holding
1000 gallons of water.

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

12 cups   is the answer

step-by-step explanation:

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?