Answer:
a. 64 tickets.
b. $11.
Explanation:
a.
is given as
, and the question is asking for the value of
.
Solve this equation with respect to
.
.
Subtract 5.00 from both sides of this equation:
.
.
In other words, 64 tickets were purchased.
b.
, and the question is asking for the value of
.
Replace
with 12 and evaluate the expression
for
.
.
In other words, $11.00 were spent.