What is 7 copies of the sum of 8 fifths and 4?

39¹/₅ or 39.2

The Problem:

The Process:

Here are some early expressions that need attention.

7 copies of the sum of 8 fifths and 4 mean that we have to multiply 7 with the sum of 8 fifths and 4.  The term of "the product" is synonymous with multiplication.

Let us write an expression to match for '7 copies of the sum of 8 fifths and 4'.

Let us calculate the operation in parentheses at first.

And now we solve the full expression.

In mixed fraction:

In decimal:

Thus, the result is .  

Keywords: what, 7 copies, the sum of, 8 fifths and 4, write an expression to match, and then evaluate, 39¹/₅ or 39.2, multiply, parentheses, in mixed fraction, decimal  

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

i think it would be 42cm