Which variable expression represents the word phrase? the sum of 10 and the product of 7 and a number A. 10-7y B. 10y + 7 C. 10 + 7y D. 10 + (y : 7)

Let's assume

that number as y

the product of 7 and a number means multiplication of 7 and y

so,

the product of 7 and a number=7y

the sum of 10 and the product of 7 and a number means addition of 10 and 7y

so, we get

the sum of 10 and the product of 7 and a number is 10+7y

so, option-C ... Answer