Answer:
Rational
Step-by-step explanation:
-9 is rational because 9 is a perfect square and all perfect squares are rational.
Answer:
sorry if this is wrong
Step-by-step explanation:
a. 3
b.15
c.8
1. Turn improper


2. set up the problem

now multiple across and simplefy
1/2 b-39=101
+39 +39
1/2 b= 140
2(1/2) b= 140(2)
b=280
Answer:
The customer's total cost for the DVD is $19.26
Step-by-step explanation:
Store buy the dvd for $12.00.
The store price is $12.00+50% more
The store price= $12.00 *(1+0.5)= $18.00
Final price (tax added)= $18.00 + 7%
Final price= $18.00 * (1 + 0.07)= $19.26