Help please

The vert of ZCOD in the drawing is point ​

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)