Spiral Review- 7th Math

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 $\frac{4}{10}+\left(-\frac{7}{10}\right)$  

• 3/5

• 2/5

• -3/10

• 11/10

 $\frac{1}{4}-\left(-\frac{5}{8}\right)$  

• 4/8

• 7/8

• 3/4

• 6/8

 $-8.2\ +\ 5.4$  

• 13.2

• -2.2

• 3.6

• -2.8

Find the constant of proportionality

• k= 42

• k= 21

• k= 81

• k= 35

Find the equation for the situation

• y = 5x

• y = 3x

• y = 7x

• y= 8x

How many books will be read after 120 days?

• 8 books

• 12 books

• 9 books

• 10 books

What is the unit rate in this graph?

• k = 9

• k = 4

• k = 12

• k = 6

Which equation describes the proportional relationship?

• y= 10x

• y= 4x

• y= 7x

• y= 5x

Why is the graph NOT proportional?

• The graph is not a straight line

• The numbers are odd

• Line does not pass through (0,0)

• The line is diagonal

What does the point (4,60) represent in this graph?

• After 4 hours you burn 60 calories

• You can read 4 books in 60 days

• In 4 days you receive 60 emails

• With 4 cups of sugar you can make 60 cookies