1 x 75, 3 x 25, 5 x 15
Oxygen and silicon are the two elements that make up 75 percent of the total mass of the crustal rocks on Earth.
Two numbers that add up to 75 could be 30 and 45. Alternatively, you could also have 50 and 25. There are many pairs of numbers that can sum to 75, such as 60 and 15 or 70 and 5.
A light source and an object.
2 and 127
75%
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1*31 It is a prime number
Hydrogen and helium are the two main gases that make up the Sun. Hydrogen is the primary component, making up about 75% of its mass, while helium accounts for most of the remaining mass.
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