The radius of the planet Jupiter is 6.99x10^7 metres. The radius of the Earth is 6.37x10^8 metres.

The volume of Jupiter is k times the volume of the Earth.

Assuming that both planets are spheres, calculate the value of k.

Give your answer correct to 3 significant figures.

(3 marks)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?