What is the difference in length between a 1 1/4 inch button and a 3/8 inch button

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.

Which expression is equivalent to sq-80

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?