How many atoms of Mg are there in the following equation? 3MgSO4

Group of answer choices

1

12

3

4

theres 4

Step-by-step explanation:

i know this because if it starts with a problem

like that one the number of atoms come after like water does

there 2 hydrogen and 2 oxygen no oxygen doesnt have a 2 after because oxygen is made up of 2 atoms so its just H2O

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.