A metal bar weighs 15 ounces. 81% of the bar is pure silver. How many ounces of silver are in the
bar? Use percent rounding to estimate the answer.

Y=4x^2+x-1 solve using quadratic formula

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

Which two undefined geometric terms always describe figures with no beginning or end?