Mary spends 2 2/3 hours on math homework every week. she also spends 3 1/3 hours on art homework every week. how much time does mary spend in total on math and art over 4 weeks?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Asap! i'm not good math and i'm lost.