A tank of water is losing 5 liters of water every minute. In 12 minutes, there are 90 liters remaining in the tank. How many minutes will it take for the tank to be empty? A. 18 minutes
B. 30 minutes
C. 45 minutes
D. 78 minutes

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Find the value of the variable and the length of each secant segment.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.