Lisa's dog is 11 pounds heavier than marcia's dog. let m represent the weight of marcia's dog. write a variable expression to represent the weight of lisa's dog.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?