exam Maths Puzzle Numerical Ability

2nd question is same as 1st, factor tree. How do I do and what is the prime factorization of the number.

90
5 x _
_ x _ x 2
_ x _ x _ x _

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exam Other Question

Two ships leave port at the same time. One sails south at 15 mi/h and the other sails east at 20 mi/h. Find the function that models the distance (D) between the ships in terms of the time [(t) in hours] elapsed since their departure. If you have a square that is 6ft by 6ft and want to make it a triangle with the same square footage, what would it be and how?