Which expressions have a sum of -12 right answer only!! a. -13+(-1 )
b. 2+ (-14 )
c. -5+17
d. -4+(- 8

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33