Add, subtract, multiply, or divide the following fractions. remember to find the lcd first. 1/5+1/7+3/21

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)

The perimeter of a rectangular rug is 24 feet. the length of the rug is 1 2/5 i s width. what is the area of the rug

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each