If a circle of radius 2 is made to roll along the x-axis, what is an equation for the path of the center of the circle

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?