4. The time units for acceleration are often written as seconds squared or s?. This is a mat- shorthand way of talking. It is better to think of acceleration in units of
change per

The variable, x, is the number of pieces of ribbon Michael cuts. Since each piece is 3.4 yards long, 3.4x is the total length of all the pieces together. This total length cannot be more than the 100 yards of ribbon he has, so 3.4x must be less than or equal to 100.