Alake near the arctic circle is covered by sheet of ice during the cold winter months. when spring arrives, the eye starts to melt. s models the ice sheet thickness in meters after t weeks. s = -0.25t + 4, what is the ice sheet thickness at the beginning of spring?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which expression is equivalent to -5(3x - 6/7)