He could use a scale to measure the weight and use pounds as the unit of measure.
Answer:
$125+$20l<$800
Step-by-step explanation:
Money for helmet plus 20 dollars per lesson (l) has to be less than (<) 800 dollars
The order of a matrix is m×n where m is the number of rows and n is the number of columns.
can you count and find what are m and n here?
