Use only the associative property of addition to rewrite the expression − 41 + ( − 27 + 2 ) and then simplify.

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?