What is 0.60 as a fraction and a decimal of tenths?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.