Answer:
a. The sum of 5 and 7
= 5 + 7
b.The sum of 5 and y
= 5 + y
c. The sum of x and y
= x + y
a. The product of 3 and 7
= 3 * 7
b. The product of a and 7
= a * 7 = 7a
c. The product of a and b
= a * b = ab
Step-by-step explanation:
For an expression, we are not required to complete the solution. Expression is to represent the statement in algebraic terms.
