Answer:
There are 1084 pupils in that school.
Step-by-step explanation:
If there are 542 girls and boys then you would have to double 542 to get the total number of people. So, there are 1084 people in that school.
Hope this helps!
Alternate exterior angles because the are OUTSIDE of the parallel lines
It will take him 28 weeks. If he already has $60 of $200 saved, you would do 200 - 60. That would give you 140. To find out how long it would take him to make $140, you would have to do 140 divided by 5 to get the number of weeks.
I would try Khan Academy. He does very good explainations
2x+7=x+3
2x+7=3
-×
x+7=3
-7 -7
x=-4