A helicopter, initially hovering 404040 feet above the ground, begins to gain altitude at a rate of 212121 feet per second. Which of the following functions represents the helicopter’s altitude above the ground yyy, in feet, ttt seconds after the helicopter begins to gain altitude?

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?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Find an equation for the linear function which has slope -10 and x-intercept -7