Leon bought trail mix that cost $0.78 per pound. he paid $6.24 for the trail mix. how many pounds of trail mix did he buy?

Irene bought 3 yards of fabric and a spool of thread for $28.10. if the spool of thread cost $1.25, how much did the fabric cost per yard?

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.