What is the Mode of the following number sequence:
1, 2, 3, 4, 5, 6, 7, 8, 9

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12