Convert -145 degrees to radians.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1