would appreciate an explanation for the incorrect ones aka the ones in red

Score on last attempt: 10.8 out of 3 Score in gradebook: 0.8 out of 3 Suppose f(I) = I+7 12 - 5 a. Notice that f(3) = 2.5. What does this tell us about the numerator and the denominator of f? When I = 3, the value of * is 2.5 times as large as the value of z - 5. (Hint: In this case, the first answer should be an expression in terms of r, and the second answer should be a number.) b. Use function notation to represent the answer to the question, "when r = 7.8, x + 7 is how many times as large as I- 5?". Preview syntax error