In the figure show that angle a+angle b+angle c+angle d =4 right angle ​

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

0.75,1.75,2.75,3.75 is arithmetic or geometric?