Answer:
Step-by-step explanation:

She types in 450 words in 5 minutes
180/2=90
90*5=450
Maria does 1/40th of the driveway per minute. Tom does 1/35th. Together, they do:
1/40+1/35=75/1400=3/56
1/3/56=56/3, or 18&2/3 minutes working together
☺☺☺☺
Answer:

Step-by-step explanation:
That would be a divide by 5: 