- Hong has scored 76 ,62 ,81 , and 89 on his previous four tests. What score ....?HELPP?

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120 is how many percent of 1500? Can someone please solve this (√35+√15+√21+5)/(√3+2√5+√7)? How do you not get a mathematical function mixed up with multiplying? Hi, I'm trying to simplify xy/((x^-2) + (y^-2)) I've tried multiplying the numerator and the denominator by several things but to no avail? A car travels at 40 mph for 2 hr and 60 mph for 3 hrs. What is its average speed?

Answer #1| 14/01 2014 09:2066.666666666667 %