An airline finds that if it prices a cross-country ticket at $500, it will sell 100 tickets per day. It estimates that each $10 price reduction will result in 50 more tickets sold per day.
Find the ticket price (and the number of tickets sold) that will maximize the airline's revenue.

i feel your pain

Step-by-step explanation:

11

step-by-step explanation:

32.50-7.50=25

225/25=11

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.