If a subscription is $499 plus 8% tax for 30 days, but is being prorated for 7 days, plus there is a $10 off coupon, what's the final cost?

The final cost is $115.74.

Step-by-step explanation:

Total amount of 30 days with tax = = 538.92 dollars

This value is for 30 days, and its prorated for 7 days, so value for 7 days is =

= 125.74 dollars

And $10 is off, so final cost is dollars

(Suppose the discount coupon is applied at the end of billing)

The final cost is $115.74.

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752