Answer:
-15/2 (or -7 1/2)
Step-by-step explanation:
-7.5 is equal to -75/10.
When you simplify it, you get:
-15/2 which simplifies to -7 1/2
Answer:
;
,
.
Step-by-step explanation:
The resultant function is obtained by multiplying
by a real number
. That is:

If
and
, then
is:


Given that presence of the expression
, then:
and 
The value of a is obtained by applying the definition of logarithms:


Finally, the value of k is found by direct comparison:

Answer:
x= 46
Step-by-step explanation:
u add up the two coordinating sides 57+57(which is y)= 114
u miuns 160-114= 46
9 quarters...................