Yadira's mom is buying hot dogs and hot dog buns for the family barbecue. hot dogs come in packs of 1 2 1212 and hot dog buns come in packs of 9 99. the store does not sell parts of a pack and yadira's mom wants the same number of hot dogs as hot dog buns. what is the smallest total number of hot dogs that yadira's mom can purchase?

Given f(x) = 10x + 4 and g(x) = 3x - 8, what is f(x) + g(x) ? - 7x - 4 - 13x + 4 - 7x + 4 - 13x - 4

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?