PLEASE THIS IS A TEST Nina and Jo both ran a 12 km race.
Nina took 1 hour 30 minutes to run the whole race.
Jo started the race 8 minutes later than Nina but caught up when they had both travelled 9 km.
If Nina and Jo both ran at constant speeds, what is Jo's speed to 2 dp?

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

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Determine which postulate or theorem can be used to prove that lmn =nmo