Alexis uses an automatic payment from his checking account to pay his cell phone bill. He pays $89.99 per month. Write a numeric equation using negatives to show the change in his checking account over the last 3 months.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

What term makes it inconsistent y=2x - 4 ?

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?