3. the sum of two numbers is 45, and the larger number is 3 more than the smaller number. what is the smaller number?
24
21
18

Simplify the expression. enter the correct answer.

Ineed to learn how to solve this problem

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9