In quadrilateral abdc, ab ∥ cd. which additional piece of information is needed to determine that abdc is a parallelogram? i need asap

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.