5. The number of houses (H) that can be served by a water pipe varies directly as the square of the
diameter of the pipe (d). A water pipe that has a 12 cm diameter can supply 28 houses. How many
houses can be served by a water pipe that has a 30 cm diameter? (8 pts.)

Find the area of the triangle shown 3 by 6

If a || b and e || f , what if the value of y ?

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.!