Manuel ordered a set of purple and red pins . he received 40 pounds is 70% of them were purple. how many purple pins did manuel receive?

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?

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

What is the product? a-3/15a × 5/a-3