68 Expressions and PatternsPractice
Chapter Test
Write each power as a product of the same
factor. Then evaluate the expression.- 35 2. 154
- Write 2 · 2 · 2 · 2 · 2 ·2 in exponential form.
- MEASUREMENT Gregory wants to stain his
15-foot-by-15-foot deck. Is one can of the
stain shown enough to cover his entire
deck? Explain your reasoning. - MULTIPLE CHOICE Which of the following is
the value of 8 + (12 ÷ 3)^3 - 5 × 9?
A. 603
B. 135
C. 27
D. 19
Evaluate each expression if x = 12, y = 5, and
z = 3.- x - 9 7. 8 y
- (y - z)^3 9. (x + z) ÷ y
- SAVINGS Shannon is saving $24 per month
to buy a new digital camera. Use the
Distributive Property to mentally find how
much she will have saved after 7 months.
Justify each step.
Evaluate each expression mentally. Justify
each step.- 13 + (34 + 17) 12. 50 · (17 · 2)
13. SCHOOL The table shows the number of
hours Teodoro spent studying for his
biology test over four days.
Day Number of Hours Spent Studying
Monday 0.5
Tuesday 0.75
Wednesday 1.0
Thursday 1.25If the pattern continues, how many hours
will Teodoro study on Sunday?Describe the relationship between the terms
in each sequence. Then write the next three
terms in each sequence.- 7, 16, 25, 34, ... 15. 59, 72, 85, 98, ...
- PHOTOGRAPHY Suzi cut a photograph in
the shape of a square to place in her
scrapbook. If the photograph has an area
of 121 square inches, what are the
dimensions of the photograph?
Estimate each square root to the nearest
whole number.- √ 7 18. √ 84 19. √ 570
- EXTENDED RESPONSE Jacob had
10 points on his game card. An
additional 5 points is added to his game
card every time he plays a game.
Part A Write an expression that
represents the total number of points Jacob
has on his card for playing any number of
games.
Part B How many points would Jacob
have on his card if he has played 12 games?
Explain how you solved.
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