Given f(x)=2x+2 and g(x)=x+7, find (f⋅g)(x)
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What is sin 7x/4 ? i need on this urgent trig

1: 4 if the wew 35 surfboards at the beach how many were short boards?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?