Jellybeans cost $0.80 per pound. howard buys 4.5 pounds of jellybeans for himself and 1 pound for his friend. what is the total cost of the jellybeans howard buys?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

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.!