Sara's telephone service costs $21 per month plus twenty five cents for each local call. last month sara's bill was $35.50. write an equation that relates local calls (l) to the bill b(l). use this equation to find out how many local calls sara made

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).

How are sas and sss used to show that two triangles are congruent?

Write the equation in logarithmic form m^x=n