Communicate Mathematical Ideas Suppose you want to model the difference - 4 - 7. Do you need to add zero pairs? If so, why? How
many should you add? What is the difference?

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

What is the x-intercept and y-intercept of the equation 2x+1. 2o

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday