Amanda simplifies the following expression and shows her work below. What mistake did Amanda make that resulted in an incorrect answer? 14−8÷2 + 3∙4

14−4 + 3∙4

14 – 7 ∙ 4

14−28

-14

a
She added before multiplying

b
She multiplied before dividing

c
She subtracted before adding

d
She added before dividing

A

Step-by-step explanation: When she got to 14-4+3*4 she added 4+3 first instead of multiplying 3*4.

the answer is 375 miles

step-by-step explanation:

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