1) Efetue as multiplicações a) (+8) . (+5) =
b) (-8) . ( -5) =
c) (+8) .(-5) =
d) (-8) . (+5) =
e) (-3) . (+9) =
f) (+3) . (-9) =

g) (-3) . (-9) =
h) (+3) . (+9) =
i) (+7) . (-10) =
j) (+7) . (+10) =
k) (-7) . (+10) =
l) (-7) . (-10) =

m) (+4) . (+3) =
n) (-5) . (+7) =
o) (+9) . (-2) =
p) (-8) . (-7) =
q) (-4) . (+6) =

r) (-2) .(-4) =
s) (+9) . (+5) =
t) (+4) . (-2) =
u) (+8) . (+8) =
v) (-4) . (+7) =
w) (-6) . (-6) =

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

How is working backward similar to solving an equation?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?