Supposed eight out of every 20 students are absent from school lesson five days a year predict how many students would be absent from school lesson five days a year out of 40,000 students

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?

286 divided by 457.6 what is the quotient?