Which two expressions are equivalent

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

You are riding your bike and notice the square sign above. you mentally draw a straight line from point a to c. describe the angle relationship between dca and bca

When a number is decreased by 9.9% the result is 40. what is the original number to the nearest tenth? super urgent