Write a system of linear equations that fits the description. Use a graph to justify your answer. The solution of the system is a point on the line y=-9x+1 .

Graph part optional just need the system.

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.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?