If A1=6 and An=An-1+1 then find the value of A4

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.