Choose the example below that can be the first step to factoring by grouping for the following polynomial. ab + 5a – b – 5
a.(ab + 5a) – (b – 5)
b.(ab + 5a) + (b – 5)
c.(ab + b) + (5a – 5)
d.(ab – b) + (5a – 5)

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.