Q1: payments of $ 670 are being made at the end of each month for 5 years at an interest of 8% compounded monthly. calculate the present value.

The present value is  $ 26943.69

Step-by-step explanation:

Given as :

The amount paid at the end of  each month = $ 670

The time period = 5 years = 12 ×5 = 60 months

So , The total amount paid for the 60 months = $ 670 × 60 = $ 40200

The rate of interest applied compounded monthly = 8 %

Let The present value = $ P

From compounded method

Amount = Principal ×

Or, $ 40200 = P  ×

Or, $ 40200 = P  ×

Or, $ 40200 = P  × 1.492

∴ P = = $ 26943.69

Hence The present value is  $ 26943.69  Answer

i belive those are the ones that are under 90 degreese.

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.