Crew a can tunnel through a mountain in 30 days. if crew b starts from the other side at the same time, the tunnel can be completed in 18 days. how long would it take crew b working alone?

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Pick the description of a geometric object that best matches the real world object box for a deck of card

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257