The expression 10.32d + 12.84c can be used to find the total cost of d pounds of almonds and c pounds of cashews. How much does it cost to buy 31/2 pounds of almonds and 41/2 pounds of cashews?​

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Solve 13 + w/7= -18 (w/7 is a fraction)

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?