What deal number does point A on the number line below represent? A: -0.75 B: 0.76 C: -1.25 D: 1.25

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?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

What is the perimeter of an equilateral triangle if each side is (x+3)?