Crystal wants to put a fence around her vegetable garden. her garden is 5 ft wide and 4 ft long. she plans to put a post at each corner and at every foot. how many fence posts will crystal need?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x