Answer:
78
Step-by-step explanation:
A=base*height
10*7.8
9
21^2-19^2=80
sqaure root of 80 to the nearest 10th is
Answer:22
It’s like saying 8+7x2 and it’s 22
cacacacacacas
⇆⇆⇄πβ≅≅ΔΔΔ
yes
i do not know i am in 7th grade
