How does the author’s choice of text structure in ""online programs to train your brain"" impact the claim that online brain training improves brain health?.

Acar averages 22 miles per gallon. if gas costs $2.89 per gallon, which of the following is closest to how much the gas would cost for this car to travel 1,650 typical miles?

Mount saint helen the great lakes and death valley are physical features of the earth which scientific term describes these features

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide