The mass of a baby boy at birth was 3.6kg. When he was 6 months old and 12 months old, his masses were 7.2kg and 10.0kg respectively. What was the percentage increase in his masses at 13 months old as compared with a) his mass at birth
b) his mass at 6 months old

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Are the corresponding angles congruent? explain why or why not.