Factoring the following by using the grouping method and identify one of the factors below: 28xy − 154x + 20y − 110?
a. x − 4
b. 7x + 4
c. 7x − 11
d. 2y − 11
explain how you've gotten the answer or explain what i have to do to get the answer. ^^

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?