M + n = 12
+ m - n = 6
show your work

Amap of the united states has a scale of 1 inches = 300 miles. the distance on the map from boise, idaho, to phoenix, arizona, is about 2 1/2 inches. what is the actual distance from boise to phoenix?

Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did

If eh = hg and hg=16, find the diameter of k