1. -4/9(-7/9)=

2. 8/15(-2/3)=

3. 9/10 divided (-6/5)=

4. -4/11 divided 2/7=

i don’t understand how to do them. can anyone explain how to get the answer?

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)