Plz help100 points. also, plz be the correct answer

For logarithmic equations,  

log

b ( x ) = y

logb(x)=y

is equivalent to  b y = x

by=x

such that  x > 0

x>0 ,  b > 0

b>0 , and  b ≠ 1

b≠1

.In this case,  b = 5

b=5 ,  x = 25

x=25 , and  y   2

y=2 .

b = 5

b=5

x =

25

x=25

y = 2

y=2

Substitute the values of  b

b ,  x

x , and  y

y

into the equation  

b y =

x

by=x

.

5 squared

=

25

5squared=25

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4