$\"\"$

A hot-air balloon owner charges $\"\"$ for a one-hour ride.

He gave $\"\"$ rides on Saturday and $\"\"$ rides on Sunday,

Find an expression to describe his total income for the weekend.

The sum of the number of rides on Saturday and Sunday is $\"\"$ .

A hot-air balloon owner charges $\"\"$ .

Then, the owner made of total rides an expression is $\"\"$ .

$\"\"$ (Orginal expression)

$\"\"$ (Add inside terms)

$\"\"$ (Multiply)

Therefore, the balloon owner made $\"\"$ .

$\"\"$

The balloon owner made $\"\"$ .