Quién quiere hablar pero tenemos que hablar en español

What happens to the composition of an atom to cause it to become positively or negatively charged?

Alaser tag arena sells two types of memberships. one package costs $325 for one year of membership with an unlimited number of visits. the second package has $125 enrollment fee, includes five free visits, and costs and additional $8 per visit after the first five. how many visits would a person need to use for each type of membership to cost the same amount over a one-year period?

The different layers of gases that extend form the surface of the earth into space