Answer:
18 boys
Step-by-step explanation:
18=6x3
6x4=24
24+18=42
Answer:
n = 9
Step-by-step explanation:
20 + 18 + ... + 6 + 4
---------------------------
a = 20 ; d = -2 ; n = ?
--------
4 = 20 + (n-1)(-2)
-16 = (n-1)(-2)
---------
n-1 = 8
n = 9
-------
S(9) = (9/2)(20+4)
S(9) = 4.5*24
S(9) = 108
Answer:

Step-by-step explanation:

(12x+6x-30x-10)/(x-3)=
=(-12x-10)/(x-3)
=-12x*+36- 10x+30=
=-22x+56
Answer:
Usually there should only be 4 squares, but I SHALL HELP YOU
Step-by-step explanation:
(You may know this)
For Baby Smiley to have curly hair, both of her parents would have to have heterozygous for straight hair. So Baby Smiley has a 1 in 4 chance/ 25% chance of curly hair.
so this should be the answer:
S S s
s ![\left[\begin{array}{ccc}SS&Ss&\\Ss&ss\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7DSS%26Ss%26%5C%5CSs%26ss%5Cend%7Barray%7D%5Cright%5D)