Maria bought seven boxes. a week later half of all her boxes were destroyed in a fire. there are now only 22 boxes left. how many did she start with?

write an equation
what is the variable
show your work

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Which of the following tables represents exponential functions?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?