20x + 15k is the answer we just have to remove the bracket and add the terms
hope it helps
C
100 divided by 2 (boy and girl) is 50, then 4 goes into 100 25 times so a chance of being a girl in a family of 4 is 25% or .25
2 x 2 7/8 = 5 3/4 hope it helps
What are you trying to find?