If anton can carry 3 boxes per trip, how many trips will it take him to move 51 boxes? 17 27 30 37

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

What is the value of x when x + 7 = 21?

What is the result of the following division?