A taxi charges $9 for pick-up plus $0.35 for each mile. Select the expressions that represent the cost in dollars for a taxi pick-up and m miles. Select all that apply

A and C

Step-by-step explanation:

These two would allow you to get the same answer. In this case, 9 is the constant as it is the minimum amount of money one has to pay in order for them to get picked up. $0.35m is the amount that can vary between customer to customer. The other two choices are wrong as they show $0.35 as the constant.

a and c would be the correct answe

Step-by-step explanation:

this is because the taxi charges 9 dollars no matter what and since he charges 35 cents each mile the variable m would represent however many miles he has traveled  for example if this taxi driver drove someone 10 miles you would substitute 10 for the varibale m and multiply 10 x 35cents plus 9.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons