The cost of carpeting a sqaure yard is $9.10. How much does it cost to carpet 12.5 square yards?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

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

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