Question

write an expression for the perimeter and area of a rectangle that has a legth 3x+4 and a width of x+6

Answer 1

Perimeter: 8x+20

Area: 3x^2+22x+24

Explanation:

The perimeter of a rectangle is 2l+2w, which in this case is 2(3x+4)+2(x+6)=6x+8+2x+12=8x+20. The area is length times width which in this case is (3x+4)(x+6)=3x^2+22x+24. Hope this helps!