Convert 8 cm to mm with solution
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7. {73x [300 + (30 - 15)+7]*7}+63-70+ 208. 1 123 - {740 -- [160-(82+4)]*2} +7139. 5 221-78x[5+(9-3)+43) – 3410. 679+87*{[(98 - 76)x78] +7896=6}can you tell me the answers *w/ solution plsbecause math sucks xd​

Ateacher charges php 450 per hour of tutorial service on weekdays and php 500 per hour of tutorial service on saturday. if he tutors a student from monday to saturday but he spends 1.5 hours each on wednesday and saturday, how much will he earn in 2 weeks?

Abusinessman invests 5 000 000 at a simple interest rate of 7% per year. how much interest will he receive after 4 years?