What is the difference between the sum of 1/2 and 10 and the product of 1/2 and 10?

Which system of linear inequalities is represented by the graph? !

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).