Four less than twice number is ten. find the number

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2