Which expression is equivalent to the given expression?

19x-23x

19 (x-23)

x (23-19)

x (19-23)

19x (1-23x)

Richard is designing a new website for students to create study groups and collaborate with other students.

Estimate. Then find the difference. 324-285=

What is the value of ((2/3) ^0) ^-3

What is the relationship between the 6 in the number 7664

The graph below shows the distance, y, in miles, of a bird from its nest for a certain amount of time, x, in minutes: Graph titled Distance Vs Time is shown with Time in minutes along the x-axis and Distance from Nest in miles along the y-axis.

Two groups of hikers began walking from the same place, traveling in different directions. In one day, the first group traveled 16 miles north. On the same day, the second group traveled 12 miles east.

Jose bought 16 packs of cola. each packages has 6 can he drank 7 of the cans how many or left?

How long does it take a train traveling at a constant rate of 50 miles per hour to travel 350 miles?

What is the unit rate if 12 pairs of socks sell for $5.79

What is chlorination?