13) Ndiba's school is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 7 adult tickets and 8 student tickets for a total of $211. The school took in $146
on the second day by selling 2 adult tickets and 8 student tickets. What is the price each of one
adult ticket and one student ticket?

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?

Explain how you can use the associative property to evaluate (7x50)x4.

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7