Answer:
9
Step-by-step explanation:
n(A)+n(B) [n(A)=cardinal numbers of set A.so we have to count the elements and write .
=4+5
=9
A = a+b/2 x h
Add sides a and b then divide by 2
After that multiply by the h
Answer:
I have no idea. Umm maybe ask your mom. Or dad do either of them know math?
U could try to email your teacher.
Step-by-step explanation:
300-90= 90-90 +0.11x 210=0.11x 210/.11 0.11x/0.11
1909 = x I think but Idk
Celia is making cookies for her neighborhood. She plans to make 9 batches of 13 cookies, but she makes more cookie dough than she planned to and adds 6 cookies to each batch. After they bake, she takes them out of the oven and takes 7 cookies from each tray to keep for herself. How many cookies will be left to distribute among her neighbors?
Hope this helps!
