Quadrilateral is a parallelogram. What is the measure of ∠? Show your work.

Find the solution of system of equation y= x-4 y=4x+2

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.!

In the expansion of (2m-3n)^9 one of the terms contains m^3. determine the exponent of n in this term