Demarco paid $3.19$3.19 per gallon both times that he stopped for gas on a weekend trip. he bought 12.5312.53 gallons of gas the first time and 11.8611.86 gallons the second time. which expression shows the total cost in dollars of the gas he bought on this trip?

The total cost in dollars of the gas is $77.80.

Step-by-step explanation:

since we have given that

Amount of gallon of gas he bought for the first time = 12.53

Amount of gallon of gas he bought for the second time = 11.86

According to question, He paid $3.19 per gallon both the times that he stopped for gas on a weekend trip.

So, our expression that shows the total cost in dollars of the gas he bought on this trip is given by

Hence, the total cost in dollars of the gas is $77.80.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.