Problem solving involving rational equation

1. the reciprocal of 5 plus the reciprocal of 7 is the reciprocal of what number?

2.the sum of a number and 6 times its reciprocal is -5. find the number.

3. the reciprocal of the product of two consecutive intergers is 1/72.

4. the reciprocal of the product of two consecutive integers is 1/42

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

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