Abdallah noticed that if he takes the opposite of his age and adds 40, he gets the number 28. Ali wants to know Abdallah's age. He wrote the equation -x + 40 = 28 And he got his age as 68.

What was Ali's mistake? how old is Abdallah?

Please solve neatly and show steps.

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. another supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which would you choose and how much would you save with that choice? show calculator try it! if you buy 1000 ml bags, how many do you need to buy each month? type your answer in the space provided and click on the check answer button.

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have