In a school of 500 students, 160 have blue eyes, 320 have brown eyes, and 20 have green eyes. in a class of 25 students, how many would you expect to have blue eyes?
a.
16
b.
17
c.
3
d.
8

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Proving the congruent supplements theorem

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x