The length of the segment from –3 to 0 on a number line is shown. Which equation is represented by the diagram?
A. |–3| = 3
B. |3| = |–3|
C. 3 + 0 = 3
D. 3 – 0 = 3

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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?

With alll of except for the 2 that i did already