Use the relationship between the angles in the figure to answer the question. Which equation can be used to find the value of x?

x+49−28=180
x−49−28=180
x + 49 + 28 = 180
x + 28 = 180

Three lines making six angles with the top left angle at twenty eight degrees, the top right angled at forty nine degrees and the bottom middle angle at x degrees

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is