Janie receives an allowance of $3 per week. in addition, she can earn 2$ for each chore she does. this week, she wants to earn enough money to buy a cd for $13. janie can do a fractions of chores.

5 chores

Step-by-step explanation:

3+2x=13

3+2(5)=13

She would have to do 5 chores in order to earn enough money.

3 + 2x = 13

Step-by-step explanation:

So, Jamie is already receiving three dollars per week but, every chore she does thats an extra two dollars added onto her total balance. The goal is to get $13 by the end of the week. So 3 (how much she gets a week)+ 2x (x is amount of chores) = 13.

* she needs to do 5 chores in order to save enough money for her item

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

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.