Answer:
-18
Step-by-step explanation:
add 25 on both sides
f/9 = -2
multiply by 9 on both sides
f = -18
B) 6 boys
18 divide by 2 = 9 (girls)
so
12 divide by 2 = 6 (boys)
hope this helps
When the calcium atom loses electrons, it's charge increases by the number of electrons lost.
It loses 2 electrons, so it's charge increases by 2.
The answer is +2
Answer:
subtract 0.4
Step-by-step explanation:
It’s in scientific, currently. So you want to put it back the way you’d write it normally. Move the decimal two places to the right (bc x 10^2) to get 338.55