Answer:
he will be payed 420 dollars at the end of the week
Answer:
an integer plus its opposite sum zero. The opposite of a number is called the additive inverse because the two numbers' sum is zero.
Im not sure if its right i think 120 ft. (i rather u search it up)
No. Every square is a quadrilateral. There are many quadrilaterals like rectangle, trapezoid, diamond. Anything figure that has 4 sides is a quadrilateral.