Question

simplify using laws of exponents
$8x ^{2} - 10^{ - 4} \times 80 \div 2^{ - 5} \times {5}^{ - 4} \times {2}^{ - 2} \times 32$
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Answer 1

Step-by-step explanation:

N a group of students, 50% liked tea, 70% liked coffee,10% do not liked both and 120 students liked both thedrinks. by using a venn-diagram, find the total number ofstudents