1.
Solve (-2)(5) =
r
.
A.
10
B.
7
C.
-10
D.
-3
Hint
2.
Evaluate the expression -5
ac
if
a
= -2 and
c
= -3.
A.
30
B.
-30
C.
10
D.
-10
Hint
3.
Solve (-20) ÷ (-4) =
c
.
A.
-5
B.
16
C.
-16
D.
5
Hint
4.
Solve
t
=
A.
-12
B.
-24
C.
24
D.
-3
Hint
5.
The temperatures in five Minnesota cities are -7°F, -3°F, 5°F, -4°F, and -6°F. Find the mean (average) temperature of the cities.
A.
-2°F
B.
1°F
C.
-3°F
D.
-4°F
Hint