Catie is 3 years older than her brother. the sum of their ages is no more than 31. write an inequality that can be used to represent this situation, where x represents catie's brother's age. don’t combine like terms.

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

What is perpendicular to y=-1/2x+11