Answer:
Explanation:
Mathematical expressions are expressions which are combinations of constants, variables and mathematical operations . A constant is a symbol in maths which has fixed numerical value for example 2 , 3, -6,
are constants .A variable is a symbol in algebra which takes various numerical values and has no fixed value . Mathematical operations include
.
By term word phase, we mean mathematical expression using constants and variables.
Given: 49 + m
Word Phase:
Sum of 49 and m
Here, 49 is a constant
m is a variable
+ is a mathematical operation.