First, you find out 1 unit, and you do this by dividing 98 by 7 which is 14 litres. Then, you multiply 14 by 15 which is 210 litres, which is your answer. Hope this helps!
Answer:

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=15
Step-by-step explanation:
Answer: the base area of the prism is 6 cm^2
Step-by-step explanation:
Khan Akademy