3. a. if lydia wants to text at least 8 characters per second, like james, then the equation
10r + 4 = 8 could be used to model this situation. solve this equation for r.

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

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.!