Question

What operation is indicated by the expression? a. \(4 y\) b. \(\frac{7}{d}\) c. \(t+8\) d. \(3-t\)

Short answer

The operation in the expression \(4 y\) is multiplication, in the expression \(\frac{7}{d}\) is division, in the expression \(t+8\) is addition, and in the expression \(3-t\) is subtraction.

Step-by-step solution

Determining Operation A

The operation in the expression \(4 y\) is multiplication. Usually, when a number and a variable are written beside each other, it implies multiplication between the two.

Determining Operation B

The operation in the expression \(\frac{7}{d}\) is division. This is because the fraction bar actually serves as a division operator. This expression means 7 divided by d.

Determining Operation C

The operation in the expression \(t+8\) is addition. The '+' sign represents the addition operation by adding the number 8 to the variable t.

Determining Operation D

The operation in the expression \(3 - t\) is subtraction. The '-' sign serves as an indicator of the subtraction operation, in this case subtracting the variable t from 3.