45 +4(z+5). He wants to know if one expression is Martin is considering the expressions (7a + 48) and (a) greater than the other for all values of a. Part A Which statement about the relationship...

Extracted text: 45 +4(z+5). He wants to know if one expression is Martin is considering the expressions (7a + 48) and (a) greater than the other for all values of a. Part A Which statement about the relationship between the expressions is true? The value of the expression 5 (7z + 48) is always equal to the value of the expression + (z + 5). The value of the expression - (7a + 48) is always less than the value of the expression ) +4 (z+ 5). - 3 1 5 (7x + 48) is always greater than the value of the expression The value of the expression (s-) - I – 3) +4 (x + 5). The value of the expression 2(7 + 48)is sometimes greater than and sometimes less than the value of the expression - + 4 (x + 5). (b) Part B Show or explain how you found your answer to Part A. Enter your work or your explanation in the box provided. (c) Part C Write a new expression that always has a greater value than both of these expressions. Enter your expressions in the box provided.