Answer:
800
Step-by-step explanation:
20 x 40 = 800
16/7 I used my graphing calculator. I'll double check it
Answer:
30
Step-by-step explanation:
1 foot=3 in
10*3=30 there,easy
Answer:
0.90
Step-by-step explanation:
I’m doing the unit test
Group 17. They combine with alkali metals and form salt, the are reactive, they have 7 electrons in their outer energy level