Roy buys a coat for $86.40, which includes an 8% sales tax. which equation could you use to find the cost of the coat, c, without the sale tax? select all aply.

The cost of coat without sales tax is $ 80 .  

Step-by-step explanation:

Given as :

The cost of coat with sales tax = $ 86.40

The rate of sales tax = 8 %

Let The cost of coat without sales tax = $ c

So, c + 8% of c = $ 86.40

Or, 1.08 of c = $ 86.40

Or, c =

∴  c = $ 80

Hence The cost of coat without sales tax is $ 80 .   Answer

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1