The successor of a certain number when added to twice the number produces 61. what is the number?

if n represents the number, which equation could be used to solve for n?

2n + n = 61
2n + n + 1 = 61
n + 2(n + 1) = 61

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

Write an equation for the function that includes the points (2,100)and (3,100)