Lin’s father is paying for a $40 meal he has a 25% off coupon for the meal after the discounts 8% sales tax is applied what does lynn’s father pay for the meal!

32.4 $

Step-by-step explanation:

25% off means he is paying 75% of the original price

Original price = 100%

75%=0.75=3/4

3/4 of 40 is 30

Apply 8% tax on amount of 30$ and add calculated value to 30$.

OR: you can think of 30 $ as  100%. You have to add 8% tax--. now you have 108%

108%=1.08

1.08*30=32.4  

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