Here is an inflated swimming ring with dimensions in centimetres. The volume of the ring, V cm”, is given by
b
V = 0.251²(b − a)?(b + a)
a
Work out the volume when a = 35 and b = 45
Give your answer to 3 significant figures.
Total marks: 3
MathsWatch Ltd.
Toma​

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.