Write the expression in standard form. 27ℎ÷3ℎ

To write the expression \( \frac{27h}{3h} \) in standard form, you simplify it:

\[ \frac{27h}{3h} = 9 \]

The \( h \) terms cancel out, leaving:

\[ 9 \]

For the simplified expression representing \( A + B \), add the expressions:

Expression A: \( 5q - r \)
Expression B: \( -2q + 3r - 4 \)

Combine like terms:

\[ (5q - r) + (-2q + 3r - 4) \]

\[ = 5q - 2q - r + 3r - 4 \]

\[ = 3q + 2r - 4 \]

So, the simplified expression for \( A + B \) is:

\[ 3q + 2r - 4 \]