Answer:
77
Step-by-step explanation:
Answer: 360 miles per hour…………………
Answer:
f(x) = x + 3 and g(x)=
- 2 ( f - g )(7t)
I'm not sure, I just tried ma best :) !
Answer:
D, two and one third
Step-by-step explanation:
i used a calculator
Answer: 
Step-by-step explanation:
Given
It takes 20 min and 30 min for a person and his friend to paint a wall individually i.e.
In 1 min they cover
part and
part of wall respectively.
If the work together, 1 minute work is

Time required will be reciprocal of it
