In one day, 18 people each withdrew $100 from an atm machine. what is the overall change in the amount of money in the atm machine? (is the answer negative or positive $1800? )

Which statement best describes the polynomial

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!