At the airport, d airplanes flew away, and b were still there. how many more airplanes stayed at the airport than flew away?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Kate is arranging new furniture in her rectangular sitting room. she has mapped the arrangement on a coordinate pane. a,b and c represent the sofas, v1 and v2 are decorative vases and aq the aquarium. find the distance between v1 and the aquarium. any body you