On Monday, Abigail spent m minutes on her homework. On Tuesday, she spent 45 more minutes doing her homework than on Monday. On Wednesday, she spent twice as much time doing her homework than on Monday. On Thursday, she spent 15 minutes less doing her homework than on Wednesday. Write an algebraic expression in simplest form that represents the total number of minutes Abigail spent doing her homework on Monday - Thursday.

Please help! >.

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).

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Can someone answer this question for me