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Solve the inequality 3x – 3<9

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart