A pond is 7 metres in diameter surrounded by a path 2 metres wide. Concrete is 50millimetres deep.
Premixed bag - 1 cubic metre ( m3) requires 106 x 20kg bags.
How many 20 kg bags do I need

What is the quadric regression equation that fits these data

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

Find the maximum value of p= 4x + 5y subject to the following constraints :