1.
Solve
y
= 7  (15).
A.
105
B.
8
C.
9
D.
22
Hint
2.
Evaluate
x

y
if
x
= 2 and
y
= 7.
A.
9
B.
5
C.
5
D.
9
Hint
3.
Solve
t
= 3  8.
A.
5
B.
11
C.
11
D.
5
Hint
4.
Evaluate
x – y
if
x
= 8 and
y
= 5.
A.
3
B.
3
C.
13
D.
13
Hint
5.
The record high and low temperatures recorded in New York are 108°F and 52°F, respectively. What is the range of temperatures?
A.
160°F
B.
160°F
C.
56°F
D.
56°F
Hint