Select the equation that is true for all values of x. (Select all that apply.)

7x = 7x

x - 6 = 6 - X

x.2.(-6) = x : 3.4

Write the rational number in lowest terms 99/-15

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?