30. household chores you can wash one window in 15 minutes and your
sister can wash one window in 20 minutes. how many minutes will it take
to wash 12 windows if you work together?

99 points create an expression equivalent to 3(4x -2) -5x + 10 using the least number of terms. (1 point for expression and 1 point for showing your work)

The total number of photos on hannah’s camera is a linear function of how long she was in rome. she already had 44 photos on her camera when she arrived. then she took 24 photos each day for 6 days. what is the rate of change of the linear function that represents this

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work